QP SPC L 002 REV 1

STANDARDS PUBLICATION

QP TECHNICAL SPECIFICATION FOR

PAINTING AND WRAPPING

OF METAL SURFACES

(NEW CONSTRUCTION & MAINTENANCE)

DOC NO: QP-SPC-L-002

(FORMERLY QGPC ES-Q-12)

REVISION 1

Doc. File No.: SPC.L002.R1 Page 1 of 79 Custodian Dept.: FQAD

STANDARDS PUBLICATION

QP TECHNICAL SPECIFICATION FOR PAINTING AND WRAPPING OF METAL SURFACES

(NEW CONSTRUCTION & MAINTENANCE)

DOC NO: QP-SPC-L-002

(FORMERLY QGPC-ES-Q-12)

15/1/2002 1

Issued as Revised QP

Standard Specification

QAM/1 QAM QA

SQ DT DO Date Rev. Description Prepared

By Reviewed

By Approved

By Corporate Endorsement

QP TECHNICAL SPECIFICATION FOR PAINTING & WRAPPING OF METAL SURFACES (NEW CONSTRUCTION AND MAINTENANCE) DOCUMENT NO. QP-SPC-L-002 REVISION 1


TABLE OF CONTENTS

Page No. FOREWORD 5 1.0 OBJECTIVE 6 2.0 SCOPE 6 3.0 APPLICATION 6 4.0 TERMINOLOGY 7 4.1 Abbreviations 7 4.2 Definitions 7 5.0 REFERENCE STANDARDS AND CODES 10

5.1 Painting and Coating – General 10 5.2 Surface Preparation 11 5.3 Inspection and Testing 12 5.4 Colour Coding 13 5.5 Health, Safety and Environment 13 5.6 Priority of Reference Standards and Codes 14

6.0 GENERAL CONTRACTOR REQUIREMENTS 14

7.0 HEALTH, SAFETY AND ENVIRONMENTAL REQUIREMENTS 15

7.1 General Health and Safety Considerations 15 7.2 Access Facilities and Scaffolding 16 7.3 Blasting and Spray Painting Equipment 17 7.4 Paints, Solvents and Abrasives 17 7.5 Personnel Protective Equipment 18 7.6 Paint, Solvent, Chemical and Waste Material Disposal 19

8.0 PAINTING OF NEW EQUIPMENT AND STRUCTURES 19

8.1 General Requirements 19 8.2 Vendor Standard Coating Systems 20 8.3 Materials and Equipment Not to be Painted 21

9.0 PAINTING OF EXISTING EQUIPMENT AND STRUCTURES 21

9.1 General Requirements 21



Page No.

10.0 SURFACE PREPARATION 22 10.1 Preparatory Grinding and Degreasing 22 10.2 General Blast Cleaning Requirements 23 10.3 Dry Blast Cleaning 25 10.4 Wet Abrasive Blast Cleaning and Water Jetting 26 10.5 Power Tool Surface Preparation 27 10.6 Mechanical Hand Tool Surface Preparation 28 10.7 Chemical Pickling 28

11.0 PAINT APPLICATION 28 11.1 Paint Suitability, Storage and Mixing 28

11.2 Paint Application Equipment 29 11.3 Paint Application Methodology 30 11.4 Repair of Damaged Paintwork 32

12.0 WRAPPING TAPE APPLICATION 32

12.1 Tape Suitability and Storage 32 12.2 Surface Preparation 33 12.3 Tape Application Methodology 34 12.4 Repair of Damaged Wrapping Tape 35 12.5 Protection of Threaded Connections and Flanged Joints 35

13.0 INSPECTION DURING SURFACE PREPARATION AND COATING 36

13.1 General Inspection Requirements 36 13.2 Inspection System Requirements 37 13.3 Inspection of Equipment, Materials and Access 39 13.4 Inspection Equipment Requirements 42

14.0 QUALITY ASSURANCE REQUIREMENTS 43 15.0 DOCUMENTATION 44 16.0 PROTECTIVE SYSTEM CLASSIFICATION BY AREA, SERVICE AND MATERIAL 45 17.0 COATING AND WRAPPING SCHEDULES 46-63 18.0 COLOUR CODING AND IDENTIFICATION SCHEDULES 64



Page No. 19.0 APPENDICES 65 19.1 APPENDIX A. TABLES 65 1 Corresponding Degrees of Paint Rusting Standards 66 2 Corresponding Surface Preparation Standards 66

3 Painting and Wrapping Quality Inspection and Test Plan Checklist 67-68 4 Painting and Wrapping Daily Inspection Report 69 5 Painting and Wrapping Close Out Inspection Report 70

6 Colour Coding Scheme for Equipment 71 7 Colour Coding Scheme for Pipework, Valves and Fittings 72 8 Colour Coding Scheme for Hazards and Fire and Safety Signs 73 9 Colour Coding Scheme or Industrial Gas Cylinders 73 10 Respiratory Personnel Protective Equipment 74 11 Eye and Face Personnel Protective Equipment 74 12 Foot and Body Personnel Protective Equipment 74 19.2 APPENDIX B. FIGURES 75 1 Zones of Offshore Structures for Corrosion Protection 75

19.3 APPENDIX C. MINIMUM FORCED VENTILATION REQUIREMENTS 76 REVISION HISTORY LOG 77-79



FOREWORD This document has been developed by Facilities Quality Assurance Department (FQAD), reviewed by QP User Departments and endorsed by QP Management for use as the QP Technical Specification for the Painting and Wrapping of Metal Surfaces (New Construction and Maintenance). The document is published for QP Departments, Contractors and Consultants utilization for the painting and wrapping of metallic equipment, structures and components other than subsea pipelines and the Splash Zone section of riser lines. It is emphasised that the requirements of the document should be adopted and utilised in their entirety for all such work undertaken for QP whenever applicable and appropriate. This document is the first revision of former QP Standard ES-Q-12, the original version of which was issued in April 1996. It supersedes that document and has been renumbered in line with the present Standards Numbering System. The document in its present form reflects as far as possible the current QP requirements for this type of work, taking account of the present industrial practices, materials and technology and the latest applicable National and International Standards and Codes. It will be subject to further periodic review, to re-affirm its adequacy, conform to any changes in QP requirements and include new developments in the field. It is recognised that there will be situations where addenda, data sheets or points of clarification require to be attached to the document, in order to suit a specific application or service environment. In such situations, the contents shall not be changed or re-edited by any user but any addenda or clarifications that would entail major changes shall be brought to the attention of the Custodian Department. Any proposed exceptions or deviations from this Specification shall also be submitted, together with justification, to the Custodian Department for review and consideration. The Custodian of this document is Facilities Quality Assurance Department. All technical comments, opinions and recommendations on the contents should therefore be sent to: Facilities Quality Assurance Department Manager Building No 5, Ras Abu Aboud P.O. Box No 47 DOHA, Qatar Tel: 4402205 Fax: 4402207



1.0 OBJECTIVE

1.1 The objective of this Specification is to define the QP requirements for the protective painting and wrapping of all new and existing metallic equipment, structures and components and the specific requirements for different types of equipment, service environment and constructional material.

1.2 It provides a technical basis for developing individual painting and wrapping project

specifications, coating schedules and purchase requisitions. It also enables the painting and wrapping work carried out by Contractors to be monitored for compliance with specification requirements.

2.0 SCOPE

2.1 This document specifies the minimum QP standards for the surface preparation, painting and wrapping of metallic equipment, structures and components, including inspection, testing and reporting, for corrosion protection and aesthetic purposes during new construction and maintenance.

2.2 It covers the general, safety, environmental and quality control requirements for the

materials used and the surface preparation of, and application of paint and wrapping tape to, the exterior of vessels, tanks, process equipment, pipework and structural steelwork and the interior of vessels and tanks.

2.3 It identifies the specific painting and wrapping system requirements for items to be

painted for individual applications, based upon the nature of the service conditions and environment and the constructional materials involved. It details the specific surface preparation and paint system and wrapping tape requirements, including the standard of surface cleanliness and roughness, the number of coats of each type of paint or tape and their film thickness.

2.4 The following items are outside the scope of this document:

(a) External coating of sub-sea pipelines, which is covered in QP-SPC-L-004. (b) External coating of the Splash Zone section of riser lines, which is covered in

QP-SPC-L-003. (c) Internal cement-based lining of pipework and vessels.

3.0 APPLICATION 3.1 This Specification shall be used for all painting and wrapping of newly constructed

equipment and structures, including repair during and after installation, and for the field maintenance painting and wrapping of existing equipment, from local touch up work to total refurbishment.

3.2 All surface preparation, paint application and wrapping shall be carried out in

accordance with this Specification and the Paint Manufacturers' recommendations. In the case of conflict between this Specification and the Paint Manufacturer's recommendations, the latter shall apply.



4.0 TERMINOLOGY

4.1 ABBREVIATIONS The following abbreviations shall apply. COSHH Control of Substances Hazardous to Health

DFT Dry Film Thickness FBE Fusion Bonded Epoxy Coating LEL Lower Explosive Limit MIO Lamellar Micaceous Iron Oxide Pigment MSL Mean Sea Level PPE Personnel Protective Equipment QA/QC Quality Assurance/Quality Control QP Qatar Petroleum TEL Threshold Exposure Limit TDFT Total Dry Film Thickness WFT Wet Film Thickness 4.2 DEFINITIONS The following definitions shall apply.

Amplitude The average peak to trough height of the profile of a steel surface after

preparation by abrasive blast cleaning (see Profile).

Applicator A party to a contract who is responsible for the application of paint coatings and wrappings, including all surface preparation. An Applicator may be a Contractor or nominated Sub-contractor

Atmospheric The part of an onshore structure or facility that is above ground Zone level and the part of a marine structure above the Splash Zone that is

subject solely to atmospheric exposure during service. Coating A continuous film or layer of a suitable substance that is applied to the

surfaces of an item for protective or aesthetic purposes.

Consultant A party to a contract who is responsible for providing design engineering and other consultancy services under the contract.



Contractor The party, firm or company with whom QP enters into a contract to

perform the work to which this Specification applies. Degree of The quantity and size of the areas of a painted steel surface in which Paint deterioration of the paint film by rust breakthrough and underrusting is Rusting evident, expressed as a percentage of the total surface area.

Dewpoint The temperature at and below which aqueous condensation formation from the air starts to occur as a result of it becoming supersaturated with water vapour. It will be governed by the Relative Humidity of the air, higher values of which produce an increase in the dewpoint temperature

Dry Film The thickness of a coat of paint, layer of tape or coating system in Thickness its fully cured condition.

Dry Abrasive A cleaning procedure in which a suitably sized and shaped dry metallic Blast or non-metallic abrasive is mixed with compressed air and fired at metal Cleaning surfaces at a pressure of around 100 psig to remove corrosion

products, paint and other surface residues.

Elevated Surface of the equipment or facility that will attain a Temperature temperature in excess of 120°C during service.

Fusion An epoxy coating that is applied to preheated pipe as a powder by Bonded electrostatic spray, rapidly cured by the controlled heat from the pipe and Epoxy water quenched to give a fusion bonded coating.

Fabricator Organization responsible for the construction or fabrication of new facilities and the installation of items of equipment therein.

Hold Points Steps within the surface preparation and application procedure beyond

which the applicator shall not proceed without formal authorization via an inspection report from the QP Engineer or Authorised Representative

Holidays Discontinuities such as pinholes and small sized defects in the paint or

wrapping film that significantly lower the dielectric strength of the coating

Hot Dip A process by which steel articles are coated with zinc by controlled Galvanising immersion in a molten zinc bath.

Hot Surfaces Metal surfaces on the equipment or facility that will normally attain a

temperature in excess of 65°C and can therefore be injurious to personnel touching them.

Inspector The QP Engineer’s Appointed Representative delegated to witness

QA/QC requirements and report on the compliance or non-compliance with these requirements.



Lining A protective coating on the internal surface of a vessel or pipe.

Manufacturer A party responsible for manufacture of equipment or materials to perform duties specified by QP or its nominated consultants.

May An acceptable option or options under the contract. Microns One thousandth of a mm (expressed as “µm”).

Mouse Hole A small hole cut in a steel plate or section to either bridge a weld or

provide a drainage point.

Paint The number and type of coats of paint to be applied to a substrate to System provide a required level of corrosion protection. Painting The application to a substrate of one or more layers of a pigmented

coating material, in liquid, paste or powder form, which forms an opaque film having protective properties.

Pigment Solid filler or colouring agent in a paint.

Potlife The length of time that a single pack or mixed two-pack paint will remain

in a usable condition at a given temperature.

Profile The roughness or contour of a steel surface after preparation, also known as the Anchor Pattern (see also Amplitude).

Qatar The Corporation. Any actions taken by QP shall be taken to include Petroleum actions taken by an Appointed Agent of Qatar Petroleum.

Qatar Petroleum The Appointed QP Representative under the conditions of the

Engineer contract.

Relative The mass of water vapour in the air expressed as a percentage of the Humidity mass of water vapour that is required to saturate the same volume of air

at the same temperature.

Shall A mandatory requirement to be strictly followed under the contract.

Shelf Life The Manufacturer’s recommended maximum storage time for a given product under recommended storage conditions.

Shop The Vendor’s, or Sub-contractor’s, factory location for surface

preparation and painting operations.

Should A strong but non-mandatory recommendation to comply with the contract requirements.



Site The field location for surface preparation and painting operations approved by QP.

Splash Zone The portion of a partially immersed marine structure or pipeline that is

subject to both wetting by seawater or sea spray and drying by the marine atmosphere. It is to be taken as being from –3.00m (10 feet) below MSL to +4.5m (15 feet) above MSL (see Figure 1).

Submerged The immersed portion of a marine structure from the seabed up to Zone –3.00m (10 feet) below MSL (see also Splash Zone and Figure 1).

Substrate The metal surface to be prepared and coated.

Thinner An approved liquid added to a paint to reduce the viscosity and ease its

application.

Total Dry The thickness of the complete fully cured coating or wrapping system. Film Thickness

Vendor The Organization responsible for manufacturing, fabricating or supplying

any items for delivery to the Fabricator or QP.

Wet Abrasive A cleaning procedure in which a mixture of a suitable abrasive in fresh Blast water is fired at metal surfaces at a pressure of up to 2000 psig to Cleaning remove corrosion products, paint and soluble salts.

Water Cleaning procedures in which fresh water, which may contain a corrosion Cleaning / inhibitor, is fired at surfaces at a pressure of from less than 5,000 psig to

Jetting over 25,000 psig to remove scale, corrosion products and soluble salts.

Wet Film The thickness of a paint film immediately after application when little Thickness or no solvent evaporation has occurred. Will An essential action or need to meet the mandatory requirement. Wrapping The application to a component of a continuous strip of plastic-backed

self-adhesive tape that is wound on in a helical manner for protective purposes.

5.0 REFERENCE STANDARDS AND CODES

The latest editions of the following Standards, Codes and Specifications shall apply.

5.1 PAINTING AND COATING - GENERAL ASTM A123/M Standard Specification for Zinc (Hot Galvanized) Coatings on Iron and

Steel Products.



ISO 1461 Hot-Dip Galvanized Coatings on Fabricated Iron and Steel Articles – Specifications and Test Methods.

ISO 12944-1-8 Paints and Varnishes – Corrosion Protection of Steel Structures by

Protective Paint Systems. ISO 14713 Protection Against Corrosion of Iron and Steel in Structures – Zinc and

Aluminium Coatings.

BS EN 22063 Metallic and Other Inorganic Coatings - Thermal Spraying.

SSPC Manual Vol. 1. Good Painting Practice. Vol. 2. Systems and Specifications.

5.2 SURFACE PREPARATION

ASTM D2092 Standard Guide for Preparation of Zinc Coated (Galvanized) Steel

Surfaces for Painting.

ISO 8501-1 / Preparation of Steel Substrates Before Application of Paints and SIS 055900 / Related Products - Visual Assessment of Surface Cleanliness. Part 1: BS 7079-A1 Rust Grades and Preparation Grades of Uncoated Steel Substrates

& Supp. and Steel Substrates After Removal of Previous Coatings.

ISO 8503-1-4 / Preparation of Steel Substrates Before Application of Paints and BS 7079-C1-4 Related Products – Surface Roughness Characteristics of Blast

Cleaned Steel Surfaces.

ISO 8504-2 / Preparation of Steel Substrates Before Application of Paints and BS 7079-D2 Related Products – Surface Preparation Methods. Part 2: Abrasive

Blast Cleaning.

ISO 8504-3 / Preparation of Steel Substrates Before Application of Paints and BS 7079-D3 Related Products – Surface Preparation Methods. Part 3: Hand and

Power Tool Cleaning.

ISO 11124-1-4 / Preparation of Steel Substrates Before Application of Paints and BS 7079-E1-E4 Related Products -Specifications for Metallic Blast Cleaning Abrasives

ISO 11126-1-10 / Preparation of Steel Substrates Before Application of Paints and BS 7079-F1-F10 Related Products – Specifications for Non-Metallic Blast Cleaning

Abrasives. SSPC Vis 1 Visual Standard for Blast Cleaned Steel. SSPC Vis 3 Visual Standard for Power- and Hand-Tool Cleaned Steel

SSPC SP 1-3, 5-8, Steel Structures Painting Council and National Association of 10&11 / NACE 1-4 Corrosion Engineers Surface Preparation Standards.



SSPC SP12 / Surface Preparation and Cleaning of Steel and Other Hard Materials by

NACE 5 High- and Ultrahigh- Pressure Water Jetting Prior to Recoating.

NACE RP 0178 Fabrication Details, Surface Finish Requirements and Proper Design Considerations for Tanks / Vessels to be Lined for Immersion Service.

5.3 INSPECTION AND TESTING

ASTM D610 / Standard Test Method for Evaluating Degree of Rusting on

SSPC Vis 2 Painted Steel Surfaces.

ASTM D1186 Standard Test Methods for Non-Destructive Measurement of Dry Film Thickness of Non-Magnetic Coatings Applied to a Ferrous Base.

ASTM D1212 Standard Test Methods for Measurement of Wet Film Thickness of

Organic Coatings.

ASTM D3276 Standard Guide for Painting Inspectors (Metal Substrates).

ASTM D3359 Standard Test Methods for Measuring Adhesion by Tape. ASTM D4228 Standard Practice for Qualification of Coating Applicators for Application

of Coatings to Steel Surfaces. ASTM D4285 Standard Test Method for Indicating Oil or Water in Compressed Air. ASTM D4414 Standard Practice for Measurement of Wet Film Thickness by Notch

Gages.

ASTM D4417 Standard Test Methods for Field Measurement of Surface Profile of Blast Cleaned Steel.

ASTM D4541 Standard Test Method for Pull-Off Strength of Coatings Using Portable

Adhesion Testers.

ASTM E337 Standard Test Method for Measuring Humidity with a Psychrometer (Wet and Dry Bulb Temperatures).

ASTM F21 Standard Test Method for Hydrophobic Surface Films by Atomiser Test. ISO 4628-1-6 / Evaluation of Degradation of Paint Coatings - Designation of Intensity,

BS3900-H1-4 Quantity and Size of Common Defects - Blistering, Rusting, Cracking, Flaking and Chalking.

ISO 8502-1-10/ Preparation of Steel Substrates Before Application of Paint and

BS7079-B2-10 Related Products – Tests for Assessment of Surface Cleanliness.

ISO 9001 Quality Management Systems – Requirements.



SSPC PA 2 Measurement of Dry Paint Thickness with Magnetic Gauges.

NACE RP0188 Discontinuity (Holiday) Testing of Protective Coatings.

NACE RP0287 Surface Profile Measurements of Abrasive Blast Cleaned Steel

Surfaces Using a Replica Tape.

NACE RP0490 Holiday Detection of Fusion Bonded Epoxy External Pipeline Coatings of 10-30 Mils.

QSP-QC-09 Quality Requirements for Projects.

5.4 COLOUR CODING

BS EN 1089-3 Identification of Contents of Industrial Gas Containers.

BS 381C Colour for Identification, Coding and Special Purposes.

BS 1710 Identification of Pipelines and Services.

BS 4800 Paint Colours for Building Purposes.

BS 5378-1 & 3 Safety Signs and Colours : Colour and Design.

5.5 HEALTH, SAFETY AND ENVIRONMENT

OSHA 29 CFR Regulation Pertaining to Work in Confined Areas.

API 2217A Guidelines for Work in Inert Confined Spaces in the Petroleum Industry

BS 5973 Code of Practice for Access and Working Scaffolds and Special

Scaffold Structures in Steel.

QP-PHL-S-001 Corporate Fire and Safety Philosophy. QP Safety Regulations for Contractors.

QP Onshore and Offshore Safety Standards.

QP-SPC-V-001 EMS Specification for Waste Management. QP-GDL-V-001-5 EMS Guidelines: Waste (Solid and Liquid) Management. NIOSH (U.S.A.) Occupational Safety and Health Guidelines for Chemical Hazards.

HSE (U.K.) Control of Substances Hazardous to Health Regulations, 1999. Paint Manufacturer Product and Material Safety Data Sheets



5.6 PRIORITY OF REFERENCE STANDARDS AND CODES In the event of conflict arising between this Specification and the National and

International Standards and Codes referenced herein, the requirement of this Specification shall apply, unless otherwise specified.

6.0 GENERAL CONTRACTOR REQUIREMENTS 6.1 The Contractor shall, unless otherwise formally instructed by QP, supply all required

materials, such as approved blast cleaning abrasives for preparing surfaces and approved paints, thinners and wrapping tapes for coating and wrapping them in accordance with this Specification.

6.2 The Contractor shall, unless otherwise formally instructed by QP, provide all

equipment and tools necessary to carry out the surface preparation and coating work in an effective and efficient manner. All equipment and tools shall arrive in good working order and in a sufficiently clean condition that they do not cause contamination of the coating. They shall be maintained in good working order at all times. The Contractor shall supply all materials, such as oils, greases, cleaners and spare parts, that are required for equipment maintenance purposes.

6.3 The Contractor shall provide and maintain on site in good condition for the duration of

the work all inspection equipment that is required to carry out the painting and wrapping fully in accordance with the Specification.

6.4 The Contractor shall provide the required number of experienced and skilled personnel,

together with experienced, competent and qualified supervision, to carry out the work to the required standard and within schedule, using good general painting practices as laid down in Volume 1 of the SSPC Manual.

6.5 At QP’s discretion, the Contractor shall:

(a) Submit documentation of his previous experience with the application of the

same or similar coatings or wrappings. (b) Before starting any coating work under the contract, prepare test panels of the

design specified in ASTM D4228 for the evaluation of the proposed application personnel and equipment capabilities and paint them with the specified coating system in the proposed manner.

(c) Have the test panels evaluated in accordance with ASTM D4228 to qualify such

personnel that are considered to have applied the specified coating to an acceptable standard.

(d) Ensure that all required testing and qualification work is witnessed and evaluated

by the QP Engineer and, if appropriate, the Paint Manufacturer’s Representative.



6.6 Prior to commencement of the work, the Contractor shall submit for the QP Engineer’s approval a detailed procedure showing how he intends to carry out the work in accordance with this Specification. He shall provide full details of any Sub-contractor that he intends to use, the location of each part of the work, the preparatory and coating materials that he intends to use and any other information that QP may require to clarify his work intentions.

6.7 The required standard of workmanship shall be achieved strictly in accordance with this

Specification and other relevant documents, such as site and safety regulations and applicable Standards and Codes. Deviations from the Specification and documents are not allowed, unless formally authorised by QP.

6.8 The Contractor shall be responsible for protecting all adjacent equipment, structures

and surrounding facilities that are not to be coated from mechanical damage, blasting abrasive, paint splashes and overspray during the surface preparation and coating work. Instruments, equipment identification plates, electrical and isolating flange components and machined surfaces are especially important in this respect. The Contractor shall take particular care to mask these components against such damage and contamination.

6.9 The Contractor shall maintain at each job site a log which shall consist of Daily

Progress Forms. These forms could be a management summary or the Daily Inspection Report Forms for the contract, the required contents of which are detailed in Sub-clause 13.2.5 and a typical format of which is shown as Table 4. They shall be signed on a daily basis by the Site Supervisor or Engineer-in-Charge and submitted to the QP Engineer. In the event that the work is carried out at an approved offsite location or outside of Qatar, the Daily Progress Report Forms shall form part of the required project documentation.

6.10 No surface preparation and/or coating application work shall be carried out in the

absence of the QP Engineer or without his knowledge or consent. Any such work shall be considered not to meet the Specification.

6.11 The Contractor shall be directly responsible to QP for completion of all work. No

distinction is made between the responsibilities and liabilities of the Fabricator, Vendor or Contractor. This Specification shall be equally binding on all parties. The Contractor is liable for his actions and those of his Sub-contractors.

6.12 Any prepared, coated or wrapped areas that are considered to be defective or in any

way not to conform with this Specification shall be rectified by the Contractor. Any instruments, components or adjacent equipment that is damaged or coated shall be cleaned or replaced at the discretion of the QP Engineer.

7.0 HEALTH, SAFETY AND ENVIRONMENTAL REQUIREMENTS 7.1 GENERAL SAFETY AND HAZARD CONSIDERATIONS 7.1.1 The Contractor shall be responsible for carrying out all surface preparation, painting

and wrapping work in a completely safe and professional manner, in addition to



meeting all QP technical and quality control standards. This will require him to provide good and safe access facilities and working conditions, appropriate preparatory, coating and inspection equipment in good working order and suitable personnel protective equipment and safety devices.

7.1.2. The Contractor shall fully comply with QP health, safety and environmental

requirements specified in the QP Safety Regulations for Contractors, Corporate Fire and Safety Philosophy and QP Onshore and Offshore Safety Standards. These cover working conditions, scaffolding and access, protective clothing, safety equipment, fire and explosion hazards, solvents, lighting, ventilation and earthing of equipment and components.

7.1.3 The Contractor shall prepare a detailed Safety Assessment Report for the job at the

worksite at the outset. This shall identify all potential safety, health and environmental hazards that could arise and ensure that all necessary preventive measures and equipment to avoid each potential hazard are adopted and made available. The Safety Assessment Report shall be approved by the QP Safety Officer before starting work.

7.1.4 The Contractor shall ensure that all fire fighting equipment required is in position at all

times in all identified hazardous areas, such as paint mixing locations, at vessel entries and close to approved diesel-driven equipment.

7.1.5 The Contractor shall carry out documented Safety Audits of the access facilities,

preparatory and painting equipment and materials, personnel protective equipment and surface preparation, painting and wrapping practices used at an agreed frequency, which should be at least monthly. He shall maintain a Log in which he records the findings and actions taken, for review by the QP Safety Officer.

7.2 ACCESS FACILITIES AND SCAFFOLDING 7.2.1 The Contractor shall provide safe and easy access to all areas of surfaces of

components and equipment that are to be prepared and coated. This shall enable the specified method and standard of surface preparation, painting and wrapping to be achieved and confirmed by inspection. The access arrangement shall be such that operators are able to stand up with body and arms free of scaffolding or staging. None of the scaffolding or staging members shall be in direct contact with the component that is being worked on and masking of any area of the component shall be minimised.

7.2.2 The access facility may be permanent or temporary but shall in all cases be subject to

approval by the QP Safety Officer. Scaffolding shall comply with the QP Safety Regulations. The Contractor shall supply and maintain rigging and scaffolding equipment capable of enabling completion of the work in accordance with the requirements of BS 5973. Its safety and security shall be regularly checked and recorded in accordance with a recognised scaffolding safety inspection and auditing system, such as the “Scafftag” System.



7.3 BLASTING AND SPRAY PAINTING EQUIPMENT 7.3.1 Air hoses, blasting hoses, spray lines and any other hoses that are subjected to any

internal pressure shall be marked with identification numbers showing the dates when they were manufactured and first used. All such hoses, blasting pots any other pressurized equipment shall be provided with valid dated pressure test certificates stating the test pressures used and the safe working pressures that must not be exceeded. The Contractor shall ensure that all hoses and pressurised components are carefully inspected for signs of wear and the presence of defects prior to each use and that no hoses are used for more than six months after their last test date. They shall then be fully inspected and retested at their design pressure before being remarked and certified for a further period of use. All compressor air and blasting hose couplings shall be secured using approved stainless steel snatch wires.

7.3.2 Blast cleaning and spray painting equipment shall be used fully in accordance with

Manufacturer’s recommendations. The air feed, blasting and spray painting hoses shall incorporate a suitable anti-static material in their construction. The guns shall be fully earthed and spark proofed on each occasion when they are used. All other precautions shall be taken to prevent any build up of electrostatic charge, particularly when they are to be used in confined spaces. The Contractor shall check all such items for electrical conductivity and replace any items showing signs of breakdown that could give rise to static electrical discharges during service.

7.3.3 Blasting nozzles shall be fitted with a Deadman’s Handle located as close to the blast

nozzle as practical. Its design must ensure that the Handle cannot, in any circumstances, be held in the “ON” position by any means other than hand pressure. Paint spray guns shall be fitted with effective Manufacturer’s trigger lock and tip guards.

7.3.4 Areas in which blast cleaning is carried out shall be sheeted in and cordoned off as

necessary for safety purposes and to minimise contamination of adjacent areas. Warning signs shall be erected as requested by the QP Engineer. This shall exclude all unauthorised personnel that could be injured by stray spent abrasive or harmful dust from old paintwork. Where power tools are being used to remove old paint or rust, precautions shall also be taken to exclude unauthorised personnel from the work area and minimise contamination.

7.4 PAINTS, SOLVENTS AND ABRASIVES 7.4.1 The Contractor shall ensure that the Manufacturer’s Material Safety Data Sheets and

NIOSH(USA) / COSHH(UK) Statements are available for all paints, solvents, chemicals and abrasives used throughout the work period. Compliance with Manufacturer’s safety precautions for products shall be an essential element in meeting the job specification. In cases of conflict, the most stringent safety requirements and precautions shall apply.

7.4.2 All paints, solvents, equipment cleaners and other chemicals used shall be stored in

closed, clearly labelled original containers. The containers shall be stored in secure enclosed, sheltered and well-ventilated storage areas or structures, where they are protected from direct sunlight, open flames and electrical discharges. They must be maintained at temperatures well below the Manufacturer’s maximum recommended



storage temperature for the products. The use of air-conditioned storage areas shall be considered for situations where excessive ambient temperatures are expected. The storage conditions shall meet all Manufacturer requirements and QP Fire and Safety Regulations for the types of chemical involved.

7.4.3 Abrasives used shall be free from toxic or harmful substances such as arsenic, lead,

cyanide and free silica. They shall not produce excessive quantities of fine dust that could cause environmental damage.

7.4.4 Handling and mixing of all paints, solvents and chemicals shall be carried out strictly in

accordance with the Manufacturer’s recommended procedures and safety and health precautions, to ensure personnel safety. Safety precautions shall be clearly detailed on the relevant product technical data sheets, as well as on the product containers. Where a specification indicates restrictions on the use of certain chemicals, adherence to these restrictions is considered mandatory.

7.4.5 The Contractor shall apply the products strictly in accordance with the Manufacturer’s

safety recommendations, which shall also be clearly detailed on the relevant Product Technical Data Sheets. Application of solvent-borne paints in restricted areas or inside vessels or tanks requires particularly careful planning and attention. Good ventilation through such vessels is essential, to ensure that the threshold exposure limit (TEL) and lower explosive limit (LEL) of the vapour is not exceeded at any time. The Contractor shall ascertain the TEL and LEL of the solvents contained in all paint products used, to establish the level of ventilation that he is required to provide. Where this cannot be achieved by natural ventilation, a forced ventilation system using a suitable air eductor and incorporating equipment for measuring the air flow shall be installed. A method for calculating the minimum forced air ventilation requirement for an enclosed space is given in Appendix C. Good ventilation is generally required in paint mixing and thinning areas, if these are enclosed.

7.4.6 The Contractor shall take care when spray applying a paint that contains a highly

volatile solvent or a thinner in close proximity (within one metre) of a gas, smoke of fire detector on QP facilities. Such detectors are extremely sensitive to vapours from certain types of solvents and alarms can be activated by their presence.

7.4.7 Where paints containing over 1% lead in the dry paint film are proposed, the Contractor

shall make this fact known to the QP Engineer and be able to demonstrate that he is able to apply the paint within the requirements of the QP Safety Regulations.

7.5 PERSONNEL PROTECTIVE EQUIPMENT 7.5.1 All personnel involved in site work, from materials handling to access

construction, preparatory cleaning, paint mixing and application and waste material handling and disposal, shall wear appropriate personnel protective equipment (PPE) for their work. The minimum level of PPE required for lung, eye, face, hand, foot and body protection for each type of work is indicated in Tables 10-12 but this should not be taken as a comprehensive guide. The PPE requirements for each activity shall be specified on the QP Work Permit. The Contractor shall be responsible for providing the PPE that is required for all activities under a contract. The requirements shall be established from



his Safety Assessment Report on each type of work (see Sub-clause 7.1.3), which should identify all possible safety and health hazards to be addressed.

7.5.2 All personnel employed in blast cleaning and the spray application of paints and

solvents shall wear air-fed masks. They shall be coupled to a clean air supply fed by an independent filtered source. The masks shall be ventilated by clean, cool air served through a regulator filter to prevent abrasive dust and paint solvents from being inhaled by the operators. These masks shall be cleaned and disinfected daily and a record of their usage maintained and verified by the Safety Officer or his appointed representative

7.5.3 The Contractor shall be responsible for ensuring that suitable types of protective

footwear, handwear, headwear and overalls are used for the appropriate hazards identified for each activity.

7.6 PAINT, SOLVENT, CHEMICAL AND WASTE MATERIAL DISPOSAL 7.6.1 During and upon completion of preparatory and painting work, facilities shall be

arranged by the Contractor to effectively and safely collect and manage all waste materials. These shall include spent abrasive, old paintwork and unwanted or spoilt paints, solvents and chemicals, plus used equipment such as brushes, rags, hoses, scaffold components and other waste materials. The Waste Management System used shall fully comply with QP Environmental Regulations and all necessary precautions shall be taken to safeguard the surrounding environment.

7.6.2 The Contractor shall arrange to dispose of all waste materials and unwanted

consumables in an acceptable manner at Government-approved disposal sites He shall maintain a formal record of the materials disposed of, the disposal dates and the disposal sites used, in accordance with QP Regulations.

8.0 PAINTING OF NEW EQUIPMENT AND STRUCTURES 8.1 GENERAL REQUIREMENTS 8.1.1 All surface preparation and painting or wrapping of newly constructed equipment and

structures shall be completed in the Contractor’s, or his Sub-Contractor’s, workshop or fabrication yard, unless otherwise specified within the relevant contract drawings or tender documents or approved in writing by the QP Engineer. Individual items of equipment may be delivered to site in only the primed or partly painted condition, with the written agreement of the QP Engineer. In such situations, the application of the remaining coats of paint shall be carried out on site after installation of the equipment.

8.1.2 The partly or fully fabricated items of equipment and structures that have been

completely prepared and painted prior to transportation to site shall be carefully packed, secured and handled to provide maximum protection against mechanical damage of the paint coating during transportation and installation on site. The Contractor shall subsequently make good any damage to the paintwork on the equipment incurred up to the point of commissioning.



8.1.3 Partially fabricated and non-fabricated items, including steel plate and structural members, may with the QP Engineer’s approval, be prepared, primed and, where necessary, partially painted prior to transportation to site. In such cases, the Contractor shall ensure that the paint coating applied in the workshop has sufficient durability to prevent the onset of corrosion during transportation and throughout the storage and construction period on site. The Contractor shall make good any damage to the paintwork incurred up to the point of delivery.

8.1.4 All surfaces of components that will be inaccessible after site assembly shall be fully

prepared and painted prior to assembly, irrespective of the painting arrangement agreed for the remainder of the equipment. Pipework shall be fully coated in the area of pipe supports, together with the supports themselves, before being installed. A thin layer of Teflon should then be fitted between the pipe and the supports, to minimize subsequent damage to the paint coating at these contact points.

8.1.5 Equipment and components that require to be stress relieved after manufacture shall

not be painted until all heat treatment has been satisfactorily completed. 8.1.6 Equipment that is to be hydrotested shall, unless otherwise formally agreed, not be

painted until this activity has been completed, apart from pipework which is to be site welded prior to line pressure testing. Workshop hydrotested pipe spools may be fully painted prior to site hydrotesting but any site welds shall be left uncoated prior to such testing. The whole paint coating shall be applied to welded areas after site hydrotesting.

8.1.7 All local welding of equipment and drilling of holes for attachments shall be completed

before cleaning and coating begins. This includes the fitting of wear pads or doubler plates to pipework at support and anchor points.

8.1.8 QP may require painted items to be transported before the Paint Manufacturer’s

specified minimum coating cure time has been reached. In such cases, the QP Engineer shall verify the request in writing to the Contractor and the liability for the repair of any damaged areas of paintwork shall be agreed.

8.1.9 All preparatory and coating work carried out at the Contractor’s or Sub-Contractor’s

premises shall be subject to planned inspection, as detailed in Clause 13.0. The Contractor shall carry out documented inspection at every stage of the activity. Pre- arranged inspections shall be carried out with the QP Engineer at specified hold points.

8.2 VENDOR STANDARD COATING SYSTEMS 8.2.1 The coating systems and finishes applied by Vendors of specially designed items of

equipment, such as pumps and compressors, are expected to be in accordance with the relevant Schedule of this Specification. Standard coating systems offered may be acceptable to QP but full details shall be provided at the outset for evaluation and approval by the QP Engineer.

8.2.2 Vendors supplying packaged or skid-mounted units shall ensure the

compatibility and specificational compliance of their overall coating system with that applied to the individual items of equipment by Sub-vendors. The Vendor shall



be responsible for co-ordinating the inspection of all the Sub-vendor’s surface preparation and painting work.

8.3 MATERIALS AND EQUIPMENT NOT TO BE PAINTED 8.3.1 Unless otherwise specified by the QP Engineer or in the contract documentation,

the following materials and equipment components shall not be prepared or painted: (a) Aluminium, unweathered zinc and copper alloy surfaces. (b) Stainless steel or nickel alloy surfaces, other than pressure-retaining components

exposed to marine or heavily polluted environments or when hot insulated. (c) Greased nipples and fittings and lubricated surfaces. (d) Machined and close working tolerance surfaces. (e) Gasket contact surfaces and exposed seals, bearings and glands. (f) Threaded connections (but see Clause 12.5). (g) Friction grip surfaces. (h) Equipment identification plates and information and warning signs. (i) Valve stems, movable linkages, compressor or pump shafts. (j) Heat tracing equipment and electrical cables. (k) Instruments and gauges, especially glass components. (l) Essential equipment openings, such as vents, drains and air intakes.

(m) Areas of components to be site welded or welds subsequently to be hydrotested. (n) Exposed parts of electrically insulating flange kit components. 9.0 PAINTING OF EXISTING EQUIPMENT AND STRUCTURES 9.1 GENERAL REQUIREMENTS 9.1.1 All surface preparation and maintenance painting of existing equipment and structures

shall be completed at the relevant QP site, unless otherwise specified in the relevant contract drawings or tender documents or approved in writing by the QP Engineer. Individual items of equipment may be removed from site for preparation and painting at the QP workshop or fabrication yard, with the written agreement of the QP Engineer.

9.1.2 A detailed survey shall be carried out by or on behalf of the QP Engineer at the outset,

to establish the condition of the existing paintwork on the equipment and structures to be painted. The findings of this survey shall be used to determine the nature and scope of the maintenance preparation and painting work required, in accordance with the guidelines given in the individual Painting Schedules.

9.1.3 The degree of rusting and extent of coating breakdown on each area and component

shall be established in accordance with the standards specified in ISO 4628 Part 3 or ASTM D610 and these standards shall be used to determine the type of surface preparation and extent of painting required. The equivalent ISO and ASTM degrees of paint rusting are given in Table 1. It may be necessary to dislodge areas of loose and underrusted paint, to establish the full extent of the coating breakdown. If the boundaries of such areas of paint breakdown cannot be reliably determined, the whole surface shall be fully prepared.



9.1.4 Heavily corroded areas of equipment and structures shall be reported to the QP Engineer for review, to avoid possible perforation of thin walled areas occurring during preparatory cleaning prior to repainting. Drainage holes should, where possible, be drilled at traps and water accumulation points prior to painting.

9.1.5 At the outset, attention shall be paid to the provision of suitable access to all areas of

existing equipment or structure for painting. The underside of pipework at and around support points and the areas between closely-spaced structural members may present particular problems. Access difficulties shall not be considered acceptable as a basis for poor workmanship. Any specific concerns in this regard shall be raised in writing with the QP Engineer prior to or at the start of the contract, to reach mutual agreement.

9.1.6 Areas of sound existing paintwork may require to be repainted for aesthetic or other

reasons. All such areas shall be cleaned as required for the paint system that is subsequently to be applied. Particular attention shall be paid to cleaning out and preparing crevices, traps and other details at which dirt and wash water can accumulate

9.1.7 The preparation of existing painted surfaces shall ensure that all loosened and

underrusted paintwork is removed back to a firm edge with suitable feathering of sound paint to give a smooth chamfered profile and that all other surface irregularities such as sags and runs are removed prior to overcoating.

9.1.8 Sweep blast cleaning shall only be carried out for the preparation of existing

paintwork with the QP Engineer’s agreement after an assurance has been provided that the use of this technique will not be detrimental to the sound coating. This cleaning technique requires a high level of operator skill, the use of a low nozzle pressure and fine abrasive and a low angle of abrasive impingement (typically 30°) on the surface from an increased nozzle to surface distance of around one metre. A sample area of the coated surface should be test prepared by this technique and the required quality agreed before any sweep blast cleaning is permitted.

10.0 SURFACE PREPARATION 10.1 PREPARATORY GRINDING AND DEGREASING 10.1.1 Unless otherwise specified, steelwork to be painted and/or wrapped shall be

pretreated as follows prior to any preparatory cleaning being carried out. 10.1.2 All metal surfaces to be painted and/or wrapped shall initially be carefully visually

inspected for the presence of surface-breaking defects, such as laminations and cold lap. All such defects shall be reported for evaluation. Shallow defects in non-critical components shall be fully ground out to give a smooth rounded surface profile. Defects which extend more deeply into the metal and all defects in pressure-retaining components shall be referred back to the QP Engineer for possible rejection.

10.1.3 All sharp and rough edges, mechanical indentations and other surface

irregularities shall be ground off to give gently rounded contours. All burrs and metal protrusions, such as weld spatter and slag, shall be ground off to give a smooth profile.



For the treatment of similar surface details inside vessels to be lined, the requirements of NACE RP 0178 shall apply. Any irregularities which become apparent after blast cleaning shall be treated similarly.

10.1.4 All metal surfaces shall be examined and tested as necessary for the presence of oil,

grease and drawing and cutting fluids. Thick grease and heavy oil deposits shall be removed from the metal surfaces by light scraping and any loose surface residues by scraping or brushing, preferably followed by wiping with solvent or detergent-impregnated rags. Particular attention shall be paid to bolt holes and drainage holes.

10.1.5 Those surfaces that are, or are likely to be, contaminated with oil or grease shall be

solvent cleaned with a suitable water-soluble biodegradable solvent using rags (for small areas), an immersion tank (for small items) or a spray gun (for large areas), in

accordance with SSPC-SP1 requirements. The solvent-cleaned surfaces shall then be thoroughly washed down with fresh water (containing less than 50ppm chlorides), ensuring that the oil-water emulsion formed is completely removed from the metal.

10.1.6 In situations where fresh water washing is not possible, subject to approval by the QP

Engineer, solvent cleaning may be carried out with an appropriate non-filming solvent. 10.1.7 Metal surfaces to be painted and/or wrapped that do not require to be blast cleaned

shall be thoroughly washed with fresh water containing a suitable water-soluble biodegradable degreasing agent, at a minimum pressure of 3,000 psig, to remove all oil, grease and other contamination. Galvanised steel surfaces that are not sweep blast cleaned shall be similarly water washed, using a stiff bristle brush to remove all water-soluble zinc salts.

10.1.8 Similar washing with fresh water containing a suitable degreasing agent and even

solvent washing of partially painted components shall take place between coats of paint or layers of tape at the discretion of the QP Engineer. This is particularly important in offshore situations or in onshore situations where either overcoating has been delayed for more than 72 hours or the partially painted or wrapped surfaces are seen to be contaminated with oil, grease or particulate matter.

10.1.9 Degreased and water washed surfaces shall be checked for residual oil and grease

using the atomized water spray test as per ASTM F21 (Sub-clause 13.4.1.4) and further degreasing carried out if residual oil or grease is found to be present.

10.2 GENERAL BLAST CLEANING REQUIREMENTS 10.2.1 The preferred method of surface preparation for all metal surfaces is dry blast cleaning.

This preparatory technique shall be used wherever possible for the painting and/or wrapping of all newly constructed equipment and the maintenance repainting of existing equipment, except when limited breakdown of the existing coating dictates the use of other methods of surface preparation. In situations where it is considered impractical or unsafe to carry out blast cleaning, the matter shall be referred to the QP Engineer for his approval to use an alternative cleaning method.



10.2.2 For high fire risk situations, where spark production during blast cleaning is considered unacceptable, the use of approved fully shielded vacuum dry blast cleaning equipment with standard abrasives, conventional blast cleaning with non-sparking expendable abrasives such as chalk, water abrasive blasting or water blasting shall be required.

10.2.3 Prior to the commencement of blast cleaning, the Contractor shall ensure that all

adjacent surfaces and equipment that could be damaged by stray abrasive, including flanges, valves, exposed parts of electrically insulating flange kits and instruments, are adequately protected against such mechanical damage.

10.2.4 At the outset, the surfaces of each component shall be examined and their original

condition categorized. For unpainted steelwork, it will be a rust grade from A to D, as specified in ISO 8501 Part 1. For painted steelwork, it will be a degree of rusting, as specified in ISO 4628 Part 3 or ASTM D610.

10.2.5 Each component shall then be fully blast cleaned to produce a surface appearance that

conforms to the requirements designated and illustrated in ISO 8501 Part 1 and Supplement for the relevant standard of surface cleanliness, original rust grade and type of abrasive used. This shall generally be to Sa 3 standard (visually clean/white metal finish) for newly constructed equipment and at least Sa 2.5 standard (very thorough/near white metal finish) for maintained equipment. Equivalent SSPC and NACE standards to the ISO standards are given in Table 2. If the specified standard of surface preparation cannot be achieved after repeated blast cleaning, because of the original steel condition, the matter shall be referred to the QP Engineer for arbitration.

10.2.6 The selection and particle size and shape of the abrasive used for blast cleaning shall

be such as to give the metal surfaces a uniform profile or anchor pattern that is suitable for the coating to be applied with minimum abrasive usage. The required profile height of the surfaces will be related to the total dry film thickness of the specified paint coating

Coating Total Dry Film Thickness Average Peak to Trough Profile Height

Up to and incl. 120 microns 35-50 microns 150 up to and incl. 300microns 50-75 microns

400 microns and above 75-100 microns 10.2.7 At the discretion of the QP Engineer, tests may require to be carried out on selected

areas of the blast cleaned surfaces, to ensure that they are free from residual millscale, oil and grease, abrasive and particulate matter, chlorides and, for non-ferrous substrates, iron salts.

10.2.8 Once metal surfaces have been blast cleaned to the required standard, no solvents,

cleaning solutions or inhibitive or acid washes shall be used on them 10.2.9 At the start of the contract, two small sections of plate shall be blast cleaned using the

specified abrasive under the agreed blast cleaning conditions and with the appropriate air blowdown. The blast cleaned plates shall be checked by the Contractor and the QP Engineer for surface cleanliness, profile height and residual particulate matter, in accordance with the relevant standards. Once it has been agreed that these plate sections meet the specified blast cleaning requirements of the contract, the Contractor



shall put them into transparent, hermetically sealed plastic wallets. One plate shall be retained by each party. In the event of subsequent disputes arising regarding the standard of blast cleaning achieved, they shall be used for arbitration purposes.

10.3 DRY BLAST CLEANING 10.3.1 Dry blast cleaning shall be carried out with an approved type, brand, grade and batch of

abrasive. For environmental reasons, only garnet abrasive shall be used for offshore blast cleaning. Expendable abrasives, such as platinum slag, copper slag and coal slag, and recyclable abrasives, such as garnet and steel grit, may be considered for onshore work. If a recyclable abrasive is proposed, the recycling equipment, procedure and quality control testing measures to be employed shall be reviewed and approval by the QP Engineer before its use can be sanctioned. Neither sand nor contaminated recycled abrasive will under any circumstances be allowed for blast cleaning.

10.3.2 The selection of abrasives for the dry blast cleaning of corrosion resistant ferrous alloys

and non-ferrous metals and alloys shall be subject to the approval of the QP Engineer. 10.3.3 The air compressor used for dry blast cleaning shall be fitted with adequately sized

after-coolers, to ensure that the compressed air supplied is completely dry. It shall also be fitted with suitable traps, separators and filters, which shall be regularly emptied of water and oil. Any accumulated moisture and oil in the air receiver vessel shall be removed by regular air purging. The air compressor shall under no circumstances be allowed to operate at temperatures in excess of 110°C. The air supply shall be checked for water and oil contamination as per the procedure specified ASTM in D4285 prior to blast cleaning and regularly throughout blast cleaning operations.

10.3.4 The compressed air supply used for dry blast cleaning shall be of sufficient pressure

and volume to enable rapid and efficient cleaning rates to be achieved. Blast cleaning shall always be carried out at a minimum nozzle air pressure of 100 psig (7 barg), as measured with a hypodermic needle gauge.

10.3.5 Blast cleaning shall not be carried out in the vicinity of recent surface preparation and

painting locations, where dust or spent abrasive from this operation could contaminate either freshly cleaned metal surfaces or a wet or tacky paint film.

10.3.6 The weather conditions shall be monitored prior to and constantly throughout the work

period. No dry blast cleaning shall be carried out when the relative humidity of the air exceeds 85% or the metal temperature is within 3°C of the dewpoint temperature. No dry blast cleaning other than preliminary scale removal shall be carried out outside daylight hours at external locations. Surface preparation may also be suspended at the QP Engineer’s discretion when he considers that adverse weather conditions are likely to develop before priming of the blast cleaned surfaces can be satisfactorily completed.

10.3.7 Upon achieving the required level of surface cleanliness by dry blast cleaning, the

abrasive supply shall be shut off and as much spent abrasive and dust as possible shall be removed from the cleaned metal surfaces by either thoroughly blowing them down with compressed air at the full blasting air pressure or vacuum cleaning them. Brushing the surfaces is also beneficial in removing embedded particulate matter. Vacuum



cleaning shall be used for the removal of abrasive and dust from the internal surfaces of vessels and tanks prior to lining them. The surfaces shall be tested for the presence of residual particulate matter as per the procedure specified in ISO 8502 Part 3. The maximum acceptable size and quantity of retained matter shall be Class 2 Rating 2.

10.3.8 Surfaces on which locally corroded areas display evidence of staining after blast

cleaning, indicative of salt contamination, shall be thoroughly washed down with fresh water and allowed to dry before being reblasted to the specified standard.

10.3.9 All dry blast cleaned surfaces shall be primed or painted before any visible rerusting

occurs and certainly within at most four hours of cessation of blast cleaning. The work must be planned to ensure that this requirement is always met.

10.4 WET ABRASIVE BLAST CLEANING AND WATER JETTING 10.4.1 Wet abrasive blast cleaning and water jetting are more specialised cleaning techniques

that shall only be considered for use on wet, damp or salt-contaminated surfaces, under wet and high humidity ambient conditions, at high fire risk locations where spark formation is considered unacceptable, and when water-dispersing, moisture-tolerant and moisture-curing primers are to be used.

10.4.2 Free water shall be removed from the metal surfaces using compressed air, squeegees

or mops immediately upon completion of cleaning until no visual signs of water remain. 10.4.3 The metal surfaces shall be cleaned by wet abrasive blasting or water jetting to produce

a finish complying with the appropriate visual and nonvisual surface preparation standards specified in SSPC-SP 12 / NACE 5 for the primer that is to be applied. Evaluation of the visual surface condition may be complicated if rust blooming occurs during the drying cycle. A corrosion inhibitor that is compatible with the primer may by agreement be added to the final wash water, to minimize rust formation during drying.

10.4.4 The acceptance criteria for the cleanliness of wet abrasive blasted and water jetted

metal surfaces shall be based upon their visual appearance and an absence of soluble iron salts when tested with potassium ferricyanide, as specified in ISO 8502 Part 1.

10.4.5 The cleaned metal surfaces shall be coated with the appropriate water-dispersing,

moisture-tolerant and moisture-curing primer as soon as all free water has been removed from them. No Schedule for the use of this type of primer is given in this document. Paint Manufacturers’ recommendations must be sought regarding the selection and use of such primers for any application.

10.4.6 Wet blast cleaning and water jetting techniques and the application of water-dispersing,

moisture-tolerant and moisture-curing primers may be carried out under wet and high humidity conditions. Subsequent paint application shall, however, be carried out under the ambient conditions required for conventional painting, i.e. maximum relative humidity 85% and metal surface temperature at least 3°C above dewpoint temperature.



10.4.7 Contractors proposing to use water abrasive blast cleaning shall provide the QP Engineer with a plan for the safe disposal of the expendable wet abrasive, stating the measures that are to be taken to ensure that it does not cause blockage of site drains.

10.4.8 Contractors shall also provide the QP Engineer with detailed method statements for the

use of these wet cleaning techniques, stating the safety precautions that they intend to take in handling these dangerous high pressure water streams. These shall comply, as a minimum, with the operating and safety requirements of SSPC SP-12 / NACE 5.

10.5 POWER TOOL SURFACE PREPARATION 10.5.1 It is stated above that metal surfaces shall be prepared by blast cleaning wherever

possible. There are, however, situations where components or areas of components cannot realistically be blast cleaned, because of their shape, complexity or remote location. In such situations, these components or areas may with the prior approval of the QP Engineer be cleaned as thoroughly as possible using power-driven tools, fitted with approved discs and wire brushes.

10.5.2 The minimum preparatory standard required for power tool cleaned surfaces shall be St

3 standard in accordance with ISO 8501 Part 1 or SP3/SP11 standard in accordance with SSPC-Vis 3. Care shall be taken to ensure that the metal does not become polished during cleaning.

10.5.3 Power tool cleaning shall continue for a minimum distance of 25mm into the adjoining

blast cleaned surfaces or, when the prepared areas continue up to existing painted areas, the interface area shall be feathered back for a minimum distance of 25mm into the sound coating, to prevent lifting of the old coating and provide a smooth sound base for the new paint.

10.5.4 With recessed welds that occur in areas which cannot be blast cleaned and are also

inaccessible for power disc and power wire brush cleaning, the use of power-driven impact tools, such as vibratory and rotary hammers and needle guns, may with the agreement of the QP Engineer be considered for primary surface preparation, followed by manual wire brush cleaning.

10.5.5 All power-driven preparatory equipment shall be of a type and quality and be used in a

manner that avoids creating indentations, grooves, burrs or sharp edges in existing coatings and metal substrates. The use of orbital and/or orbital sanders fitted with suitably graded abrasive discs or sheets is preferred for existing sound coatings. Smudges and surface contamination left by wire brushes or discs shall be removed with a water-soluble solvent. The areas shall then be rinsed with fresh water and dried. In areas where fresh water washing is not possible, with the approval of the QP Engineer, solvent cleaning in accordance with SSPC-SP1 requirements shall be performed.

10.5.6 In high fire risk locations where power or even hand tool cleaning is required, the items

of equipment used shall be of a non-sparking type that is approved by the QP Engineer.



10.6 MECHANICAL HAND TOOL SURFACE PREPARATION

10.6.1 Mechanical hand tool surface preparation shall only be permitted in areas that cannot be blast or power tool cleaned, because of their inaccessibility or isolation.

10.6.2 Details of the proposed cleaning method to be adopted and the tools to be used for

hand tool preparation shall be submitted to the QP Engineer for approval. These may include hand wire brushes, scrapers, pneumatic needle guns and chipping hammers.

10.6.3 All loose rust, mill scale, paint, welding flux and weld spatter shall be removed from the

surfaces by hand brushing, scraping, chipping, hammering or a combination of these methods and stratified rust and scale shall be removed by chipping or hammering. The surfaces shall then be thoroughly cleaned to St 3 standard in accordance with ISO 8501 Part 1 or SP2 standard as per SSPC-Vis 3.

10.6.4 In areas where the coating has been locally damaged or the prepared surfaces are

taken back to an existing painted surface, the substrate may be prepared by mechanical hand tool cleaning but the edges of the prepared area must be carefully feathered back a minimum distance of 25mm into the adjacent sound coating, to prevent it lifting and provide a smooth sound base for the new paint.

10.7 CHEMICAL PICKLING 10.7.1 Chemical pickling to white metal in accordance with the requirements of SSPC-SP8

may, with the agreement of the QP Engineer, be considered as an alternative to blast cleaning in situations and for components where it is a more practically and economically viable preparatory technique.

10.7.2 The pickling solution used shall be approved by the QP Engineer as being suitable for

treating the constructional material used for the component or equipment involved and shall contain a suitable inhibitor to prevent localised or excessive general corrosion of the treated component surfaces.

11.0 PAINT APPLICATION 11.1 PAINT SUITABILITY, STORAGE AND MIXING

11.1.1 Unless otherwise specified, all the paint products comprising a coating system for a

component shall be technically acceptable and approved products that are purchased from the same Paint Manufacturer with his assurances that:- (a) All products are fully compatible with each other. (b) The primer is suitable for the standard of surface preparation specified. (c) The complete coating system is suitable for the intended service environment,

temperature and conditions to which it will be subjected.

11.1.2 Particular care is required in the selection of primers and paints for maintenance painting. Specific assurance shall be sought from the Paint Manufacturer regarding the compatibility of maintenance primers and paints with existing paint and coating



systems. Where doubts exist regarding paint compatibility, field trials shall be carried out on selected areas of the paintwork to be overcoated.

11.1.3 Batches of paint received shall be checked for correct labeling and stored under

secure, sheltered and temperature-controlled conditions. Batches shall be used in the order in which they are received. The paint identification and storage system must ensure that this is the case. Prior to use, each batch shall be checked to ensure that it is still in the original, sealed and properly labeled manufacturer’s containers and is marked with its shelf life date.

11.1.4 Paints which are not contained in original, fully sealed manufacturer’s containers and

batches that have exceeded their shelf life date shall be discarded. Paints which are found to have gelled or thickened to such an extent that they cannot be easily mixed, irrespective of their shelf life date, shall also be discarded.

11.1.5 Paints shall be thoroughly mixed in accordance with Manufacturer’s data sheets, using

suitable rotary stirrers wherever possible, immediately prior to and regularly during use. Care shall be taken to ensure that all settled material at the bottom of containers has been fully dispersed and solvated to produce a liquid of uniform consistency. Five litre and larger sized containers of paint shall always be mixed using rotary stirrers.

11.1.6 When multi-pack paints are used, the separately packaged curing agent or hardener

shall only be added to the base paint after the latter has been thoroughly mixed. Good working practice would dictate that only a sufficient quantity of paint that can be used within its pot life under the prevailing climatic conditions and within the current working period should be mixed. Whenever possible, small units of paint materials shall be used for performing minor repairs, so as to avoid incorrect part mixing and paint wastage.

11.1.7 Standard units of multi-pack paints shall not be broken down to provide smaller

quantities without the prior agreement of the QP Engineer. Such agreement shall only be given if it can be procedurally shown and practically demonstrated that accurate measurements of the quantities of the components to be mixed can be made.

11.2 PAINT APPLICATION EQUIPMENT

11.2.1 Airless spray and conventional air spray equipment used for paint application shall

be of suitable design for the specific paint to be applied. Plural spray pumps shall be used for paints with a short pot life at high temperatures. Equipment shall be used in accordance with the Manufacturer’s operating instructions and recommendations for the application of that paint. It shall be fitted with suitable pressure regulators and gauges, to enable the operating conditions to be controlled and monitored.

11.2.2 The air pressure to the paint pump for airless spray paint application shall be

adjusted to be sufficiently high to properly atomise the paint for optimum spraying effectiveness but should not be significantly higher than this value.

11.2.3 The pressure and volume of air used for conventional air spray paint application shall

be sufficiently high at the spray gun to atomise the applied paint to the degree and at the rate required. It shall not, however, be so high that it will cause excessive solvent



evaporation or paint loss by overspray. The air supply shall be maintained dry and uncontaminated by fitting the compressor with suitable water traps, separators and filters. The requirements for their maintenance and testing shall be as specified in Sub-clause 10.3.3.

11.2.4 The fluid tips of airless spraying guns shall be of the orifice size and fan angle and the

fluid control gun shall be of the construction recommended by the Paint and Equipment Manufacturers. Fluid tips shall be of the shielded type, to prevent skin penetration by the high pressure paint. The air caps, nozzles and needles of air spraying guns shall be those recommended by the relevant Paint and Spray Equipment Manufacturers.

11.2.5 The spraying equipment shall be fitted with suitable filters and maintained clean

throughout the working period, to ensure that no dirt, dry paint or other foreign material is deposited in the paint film. The equipment shall be thoroughly washed out with solvent to remove all residual paint at the end of each working period but all solvent left in the equipment shall be completely removed before applying any further paint.

11.2.6 Brushes used for paint application shall be of good quality and of a style that is suitable

for the paint to be applied and the components to be painted. Round or oval brushes are most suitable for rivets, bolts and irregular or heavily roughened surfaces, whilst wide flat brushes are most suitable for large flat areas.

11.2.7 Neither brushes over five (5) inches wide nor rollers shall be used for paint application,

other than for the final smoothing of high volume solids paints. 11.3 PAINT APPLICATION METHODOLOGY 11.3.1 Prior to the commencement of paint application, particularly by spraying, the Contractor

shall ensure that all adjacent surfaces and equipment that could be adversely affected by paint, including flanges, valves and instruments, are protected against paint overspray and contamination.

11.3.2 All metal surfaces shall be primed as soon as possible after surface preparation has

been completed. For dry blast cleaned surfaces, this shall be before any visible rerusting of the metal occurs and certainly within four hours of blast cleaning cessation . For power cleaned surfaces, it shall be the same working day as they are prepared.

11.3.3 The preferred methods for the application of paints to prepared metal surfaces are,

airless spray or conventional air spray, due to the superior paint thickness control and coating appearance that can be achieved. Brush and other application methods shall only be used, with QP Engineer approval, for small and isolated areas, such as during stripe or patch repair painting, or where the Paint Manufacturer’s recommendations dictate their use. The number of coats and types of paint and the surfaces to be painted shall be as specified in the contract documents. The applicators shall be familiar with the Paint Manufacturer’s data and instruction sheets for each paint and shall ensure that they are applied in accordance with these recommendations. Each product and the individual coats of multi-layer products shall be tinted a different colour, to aid identification during paint application and coating inspection. The colour of the final coat shall meet the requirements of Tables 6-9 for the component and service involved.



11.3.4 The weather conditions and the metal temperature shall be monitored at the start of,

and regularly throughout, the working day. No paint application shall be carried out when the relative humidity is greater than 85% or the metal surface temperature is less than 3°C above the ambient dewpoint temperature, except with the prior written approval of the QP Engineer. The maximum and minimum surface temperatures at which a paint can be applied will depend upon its nature and curing temperature. The Manufacturer’s recommendations shall be used as the definitive guide but no paint shall be applied at surface or ambient temperatures below 5°C or above 50°C without Manufacturer’s approval. No external spray paint application shall be carried out when the wind speed exceeds 15 knots other than with the agreement of the QP Engineer. No painting shall be carried out outside daylight hours at external locations, unless specifically approved in writing by the QP Engineer.

11.3.5 Prior to the application of the full coat of primer and each succeeding coat of paint by

whatever method, all edges, corners, crevices, welds, holes, bolts, rivets and pitted areas shall be stripe painted with the appropriate paint material by brush, ensuring that the material is worked firmly into the metal surfaces. These stripe coated areas shall extend a minimum of 25mm from the relevant feature.

11.3.6 The full coat of primer or paint shall be applied to the component as soon as possible

after stripe painting. Stripe painting after application of the full coat may only be carried out by exception with the formal agreement of the QP Engineer. In this eventuality, the stripe paint shall be tinted a slightly different colour to the full coat material to aid identification. In either situation, care shall be taken to avoid solvent entrapment.

11.3.7 Where paint application is carried out by brush, the brushing shall be done in such a

way that a smooth coat of as uniform a thickness as possible is obtained. All runs and sags shall be brushed out and the paint shall be as free as possible from pores, discontinuities and brush marks. Paint shall be worked into all crevices and corners.

11.3.8 Where paint is applied by spray, the spraying technique used shall ensure that a

uniform layer of wet paint of the required thickness is deposited on all surface areas. All runs and sags shall be brushed out immediately. If there are an excessive number of runs, the paint shall be removed and the surfaces repainted using either a more suitable paint mix for the climatic conditions or a modified spraying technique or equipment. When applying high build coatings, a cross hatch spraying technique is considered beneficial in producing uniform paint films. Areas that are inaccessible or unsuitable for effective spray painting, such as crevices, cracks and blind areas of bolts and rivets, shall be locally painted by brush.

11.3.8 Each coat of paint shall be allowed to cure for at least the minimum period of time at the

prevailing temperature recommended by the Manufacturer before being overcoated. However, its recommended maximum overcoating period at this temperature shall not be exceeded. The work must be planned to ensure that this requirement is met. Where overcoating of a partly painted component is delayed for more than 72 hours, after a dust storm or strong wind or at the discretion of the QP Engineer, the painted surfaces shall be solvent cleaned and/or fresh water washed as necessary to remove surface contamination before being overcoated. They shall also be lightly abraded when the



overcoating period has been exceeded. After application of the complete paint system, it shall be allowed to fully cure as per the Manufacturer’s recommendations before the component is handled or moved. If the paint does not cure within the recommended period, at the discretion of the QP Engineer, a sample shall be removed to ascertain the cause of the problem.

11.4 REPAIR OF DAMAGED PAINTWORK 11.4.1 All areas of paintwork that are locally damaged during transportation, handling or

erection shall be fully repaired to the QP Engineer’s satisfaction. 11.4.2 When the coating is damaged but the metal substrate is not exposed, the damaged

areas of paintwork shall be gently abraded back to the sound coating using emery paper or a fine grinder. These areas shall then be wiped with a suitable solvent, to remove all debris. This technique is especially preferred for the preparation of damaged vessel and tank linings. The periphery of the repair areas shall be feathered back for a minimum distance of 25mm into the adjacent undamaged coating by light abrasion or grinding, to produce a smooth chamfered surface profile for the repair coating. Sweep blast cleaning shall only be used for the preparation of damaged coatings with the QP Engineer‘s agreement, subject to the conditions stated in Sub-clause 9.1.8.

11.4.3 When the coating is damaged back to the base metal such that areas of the metal

substrate are exposed, the exposed metal shall be cleaned to the original specified standard prior to repainting it. For larger areas of exposed metal, local dry blast cleaning, using a small vacuum blast cleaning unit, shall be used wherever possible. For small and isolated areas or where the use of blast cleaning is not practical, power tools may have to be used, with the approval of the QP Engineer, to obtain the required preparatory standard. As with partially damaged coatings, the periphery of the repair areas shall be feathered back for at least 25mm into the adjacent undamaged coating, to produce a smooth chamfered surface profile for the repair coating.

11.4.4 The prepared partially or completely damaged areas of the coating shall then be

repaired by the local application of the requisite number of coats of paint to obtain the original coating system and thickness.

12.0 WRAPPING TAPE APPLICATION

12.1 TAPE SUITABILITY AND STORAGE 12.1.1 Prior to the commencement of any wrapping work, the Contractor shall submit details of

the type and brand of cold-applied wrapping tape and the primer or adhesive that it is proposed to apply plus a detailed application method statement, for approval by the QP Engineer. The document shall be accompanied by the Tape Manufacturer’s data sheets for the products involved, confirming their suitability for the expected service conditions and environment. The wrapping tape should be a heavy-duty tropical grade material.

12.1.2 The product data sheets shall include as a minimum the following details:-



(a) Service temperature limits and chemical resistance of the wrapping tape and its adhesive or primer.

(b) Type and recommended minimum wet film thickness of the primer or adhesive. (c) Minimum and maximum recoating interval of the primer or adhesive prior to tape

application. (d) Whether the tape requires a special application machine or is suitable for hand

application. (e) Manufacturer’s recommended voltage to use for holiday detection testing.

12.1.3 Unless otherwise specified, the filler, primer, adhesive and wrapping tape used shall be purchased from the same manufacturer with his assurances that:-

(a) All products are all fully compatible with each other. (b) The tape primer or adhesive is compatible with the paint coating over which it

will be applied. (c) The complete wrapping system is suitable for the intended service environment,

temperature and conditions to which it will be subjected.

12.1.4 As with paints, the containers of primer, adhesive and putty filler and the rolls of wrapping tape shall be individually identified and stored under secure, sheltered and temperature-controlled conditions. Each roll of tape should ideally have the product name, batch number and production date stamped on or embossed in the back of the tape for easy field identification. The containers and rolls shall be used in the order received. Those which have been opened or damaged or have exceeded their shelf life date shall be discarded. The handling, mixing and application of primers and adhesives shall be as detailed in Clause 11.0.


12.2.1 Component surfaces that are to be wrapped shall have been coated with part of the

paint system that has been specified for the appropriate service environment prior to being primed and wrapped. The paint coating is required to guard against the occurrence of general and localized corrosion of the metal beneath the layer of tape by water that gains access though local points of tape damage and poorly adherent overlaps and joints.

12.2.2 The surfaces to be wrapped shall have been degreased, prepared and partially coated

with the paint system specified for the relevant service environment and conditions by the methods and to the standards specified in Clauses 10.0 and 11.0.

12.2.3 Subsequent surface preparation for tape primer or adhesive application shall be in

accordance with the Wrapping Tape Manufacturer’s recommendations. It may simply require the paint coating to be water washed or degreased and lightly abraded to obtain a suitably roughened surface profile for good primer adhesion. If the recommended overcoating period of the previously-applied paint has been exceeded, it may even be necessary to apply an additional tie-coat of a suitable paint.



12.3 TAPE APPLICATION METHODOLOGY 12.3.1 As with the application of paints, the weather conditions and the metal

temperature shall be monitored at the start of and regularly throughout the working day. No primer or wrapping tape shall be applied when the relative humidity is greater than 85% or the metal surface temperature is less than 3°C above the ambient dewpoint temperature. The maximum and minimum surface temperatures at which a tape can be applied will depend upon the nature of the adhesive and carrier materials. The Manufacturer’s recommendations shall be used as the definitive guide. No wrapping shall be carried out outside daylight hours at external locations unless approved in writing by the QP Engineer.

12.3.2 Pipe flanges and fittings shall be protectively wrapped in the same manner as the

adjacent pipework, unless otherwise specified. 12.3.3 Deeply pitted or uneven surface areas and components with irregular shaped surfaces

that are difficult to wrap, such as areas of flanges, tees and valves, shall be filled with the Manufacturer-approved putty filler.

12.3.4 The primer or adhesive shall be applied to the painted component surfaces by brush or

spray, as recommended by the Manufacturer, to give the required wet film thickness. 12.3.5 When the primer or adhesive is at the required stage of drying, the protective “waxed

paper” shall be pulled back from the adhesive side of the wrapping tape and it shall be slowly wound onto the component surface in a spiral arrangement with moderate tension using either the approved tape applicator tool or by hand. Gentle uniform pressure shall be applied to avoid any creases or wrinkles and ensure that it is in firm contact with the primer or adhesive.

12.3.6 The tape shall be wound in such an arrangement that there is 55% minimum overlap of

one layer of tape onto the previous layer, ensuring double layer coverage on all areas. 12.3.7 When a new roll of tape is started, the new tape shall be overlapped a minimum

circumferential length of 150 mm onto the end of the old tape. When a surface adjacent to a previously wrapped surface is wrapped, the new tape should overlap a minimum distance of 150mm back onto the existing tape.

12.3.8 Wrapping tape that is permanently exposed to sunlight shall be overwrapped with a

light-reflecting tape to prevent degradation of the original wrapping by ultraviolet radiation. Tape that is considered at risk from stone or mechanical handling damage shall be overwrapped with a physically protective tape.

12.3.9 Welded and flanged pipe joints shall be left uncoated and unwrapped until all pressure

testing has been completed, unless otherwise specified in writing by the QP Engineer.



12.4 REPAIR OF DAMAGED WRAPPING TAPE

12.4.1 All areas of wrapping tape that are found to have physical defects, such as creases, wrinkles, poor adhesion or mechanical damage, or to be below the required thickness or to contain pinholes shall be rejected.

12.4.2 Locally damaged areas of tape and holidays shall be repaired to the satisfaction of the

QP Engineer by peeling the tape from the affected area, repriming or reapplying the adhesive to the exposed metal and rewrapping the metal as previously, ensuring a 150mm minimum overlap onto intact wrapping tape on either side of the damaged area.

12.4.3 If the tape is extensively damaged or contains extensive pinholes, it shall be completely

removed back to bare metal and the component surfaces fully reprepared, reprimed and rewrapped to the required standard.

12.5 PROTECTION OF THREADED CONNECTIONS AND FLANGED JOINTS 12.5.1 It is stated in Sub-clause 8.3.1 that threaded connections shall not be painted unless

otherwise specified. This is due to the periodic need to dismantle such joints and the fact that the components involved are difficult to paint or wrap by conventional means. Threaded components, such as bolts and nuts, shall be given some form of protective coating, which shall be specified in the contract and approved by the QP Engineer.

12.5.2 The use of ultra violet (UV)-resistant plastic caps filled with a suitable corrosion inhibited

grease may be considered for the in-situ protection of assembled nuts, washers and the end sections of bolts. The cap design shall be such that, once attached, they are firmly locked in place and cannot be inadvertently removed. The Contractor shall submit details of the design and material of the caps and the nature of the grease that are proposed to be used, for approval by the QP Engineer.

12.5.3 The sections of bolts and other fastener components inside the flange faces of flanged

joints may be protected by fitting a proprietary clamped stainless steel band having an internal rubber sealing membrane and a drain nipple at its low point or by sealing the periphery of the flanged joints with a suitable mastic sealant after fitting a drain nipple.

12.5.4 The use of field-applied thermoplastic encapsulation may also be considered for the in-

situ protection of assembled threaded components, flanged joints, machined surfaces and other similar features. This special type of wrapping should be thought of as a strippable temporary protective system, because of the ease with which the material can be removed from the surfaces rather than longevity of the protection provided.

12.5.5 As with other types of wrapping, the Contractor shall submit details of the encapsulation

material and any primer or adhesive that are proposed to be applied, plus a detailed application method statement, for approval by the QP Engineer. The document shall be accompanied by the Encapsulation Manufacturer’s Data Sheet for the product to be applied, confirming its suitability for the expected service conditions and environment.

12.5.6 This type of wrapping system is generally applied by specialist Contractors or using

specialised proprietary equipment. Full details of the application system and equipment



involved shall be made available to the QP Engineer for approval before any encapsulation work is allowed to take place.

13.0 INSPECTION DURING SURFACE PREPARATION AND COATING

13.1 GENERAL INSPECTION REQUIREMENTS 13.1.1 All surface preparation, painting and wrapping work carried out under or to the intent of

this Specification shall be subject to systematic inspection at each stage of pre-preparation, surface preparation, painting/wrapping and repair by the QP Engineer. In addition, the work shall be subject to random inspection as and when the QP Engineer deems it necessary.

13.1.2 The basic inspection requirements and system shall be detailed in a formal Quality

Inspection and Test Plan and presented by the Contractor as part of the contract documentation for approval by the QP Engineer. A typical Q.I. & T. Plan Checklist is shown as Table 3. Such a Plan shall not relieve the Contractor from his responsibility to carry out all work in a safe and timely manner using skilled personnel and good practices to achieve a high quality product meeting all other specification requirements.

13.1.3 All defective or non-conforming work identified at each stage shall be rectified to the

required standard by the Contractor. Any preparatory, painting or wrapping work carried out to this Specification that is not systematically inspected and approved by the QP Engineer at each stage shall be deemed not to meet the Specification. The coating or wrapping shall be removed from all affected areas and they shall be reprepared and recoated or rewrapped to the approval of the QP Engineer by the Contractor.

13.1.4 The Contractor shall provide an authorised person who is a qualified Painting Inspector

to the minimum standard specified below to coordinate the inspection work carried out and report the results obtained. The proposed Contractor employee, who may be a Supervisor or Manager, shall also be individually acceptable to the QP Engineer. Additionally, either an appointed QP Painting Inspector or an approved qualified Third Party Painting Inspector shall act on behalf of the QP Engineer under the contract, to ensure that the required inspection work is being carried out in a satisfactory and effective manner to consistently give a good quality product.

13.1.5 All proposed Painting Inspectors shall be qualified to at least TWI (ex-ERS) Level 1, I

Corr Level 2 or NACE Level 2 and shall have at least five years approved experience of industrial painting of oil and gas facilities at inspector or supervisor level. The certification and resume of each Inspector shall be submitted to the QP Engineer for approval and they shall be interviewed at the start of each contract to confirm their technical capability. The Inspectors shall consult the Paint Manufacturer to obtain the necessary technical support to ensure compliance with product recommendations.

13.1.6 The Contractor shall provide a comprehensive range of approved inspection equipment

at each site of any work that is in progress, to enable all inspection work that is required under the approved Inspection and Test Plan and Work Specification to be carried out. He shall provide sufficient “sets” of commonly used inspection equipment to avoid any delays in carrying out the required inspection at all work sites.



13.2 INSPECTION SYSTEM REQUIREMENTS

13.2.1 The proposed inspection system for all preparatory, painting and wrapping work shall

operate via a series of Hold Points in the work schedule, from which the Contractor shall not proceed until he is given formal clearance by the QP Engineer. This does not mean that these are the only points at which inspection shall be carried out. It is intended that the Inspection and Test Plan will ensure that relevant inspection is carried out prior to, during and after each activity in the work schedule.

13.2.2 The relevant Hold Points, which shall be considered as mandatory under all

contracts, are as follows. These items are also identified as Hold Points in Table 3.

(a) Approval of working procedures, safety precautions and QA/QC system. (b) Authorisation of Permit to Work. (c) Acceptance of preparatory, painting, wrapping and inspection tools and

equipment type and condition. (d) Acceptance of primary metal surface or coating condition.

(e) Acceptance of the climatic conditions prior to and during all activities. (f) Acceptance of surface preparation standards.

(g) Acceptance of primer stripe painting and full primer coat. (h) Acceptance of complete paint coating or wrapping. (i) Acceptance of remedial coating and wrapping repairs.

13.2.3 All Hold Points shall be strictly observed and recorded. Any surface preparation or painting or wrapping work undertaken without Hold Point clearance shall be re-worked by the Contractor.

13.2.4 The QP Engineer shall be given at least 48 hours notice of any Hold Point

inspections that require to be carried out. Whilst work is in progress the QP Engineer shall be given at least 24 hours notice of any change in the inspection schedule. All parts of the work shall be made accessible for the inspection in good lighting, with all areas evenly illuminated to a level of not less than 500 lux daylight or artificial light. In the event of the Contractor wishing to cancel a prearranged inspection, he is required to give the QP Engineer at least one hour’s notice, unless otherwise formally agreed.

13.2.5 Full details of the inspection work carried out and the results obtained shall be reported

by the authorised Contractor Painting Inspection on a daily basis in a standard Daily Inspection Report Form, the format of which shall be approved at the outset by the QP Engineer. This Form may also be used as a daily progress report. A typical Daily Inspection Report format is given in Table 4 but it shall as a minimum contain the following information.

(a) Contractor and client name, project title and reference number and work location.

(b) Date. (c) Nature and sizes of items undergoing preparation and painting or wrapping, areas

worked on and constructional materials involved. (d) Areas not painted or wrapped and protective measures taken.

(e) Original condition of metal substrate or coated surface.



(f) General weather conditions, relative humidity, dewpoint and air and metal temperatures at start of each shift and every two hours throughout the working day.

(g) Preliminary cleaning and degreasing carried out, including solvents used. (h) Method of surface preparation and equipment used, including abrasive type,

product brand name, particle size range and batch number. (i) Standard of surface preparation and cleanliness and surface profile height obtained (j) Manufacturer, product name and number and batch number of all paints and

wrapping tapes applied. (k) Number of coats of each product applied to each area of each item and application

method used. (l) Specified dry film thickness (D.F.T.) of each coat of paint and complete paint

coating (T.D.F.T.) and measured wet film thickness (W.F.T.) of each coat and D.F.T. of each coat and complete paint coating.

(m) Areas wrapped by each tape and tape thickness obtained. (n) Locations and sizes of areas of paintwork and wrapping repaired.

(p) Any comments relating to the work that the Contractor feels are relevant.

13.2.6 These Daily Inspection Report Forms shall be completed, signed and dated by the authorised Contractor Painting Supervisor/Inspector on a daily basis at least in triplicate. One copy shall be submitted to the Contractor’s Engineer for review, one copy sent to the Contractor management and the third copy retained in the site working file. At the end of the Contract, a summary Close Out Inspection Report, a typical format for which is shown as Table 5, shall be completed, signed and dated and sent for the QP Engineer’s approval.

13.3 INSPECTION OF EQUIPMENT, MATERIALS AND ACCESS FACILITIES

13.3.1 The QP Engineer shall have the right to inspect all tools, equipment, plant, instruments,

materials, and access scaffolding and facilities that are used or to be used in the performance of the preparatory, coating application, wrapping and inspection work at the start of and at all times during the contract. The Contractor shall make all parts of the worksites accessible for these inspections.

13.3.2 QP reserves the right to reject any tools, equipment, plant, instruments, materials or

access facilities which are considered either unsuitable, unserviceable, inadequate or unsafe for the proposed work or not to fully meet the contract requirements. All rejected items and materials shall be reported as such and replaced or rectified as instructed by the QP Engineer.

13.3.3 The Contractor shall provide recent calibration certificates for all equipment and

instrumentation used for the contract, where appropriate and as requested by the QP Engineer. Equipment and instrumentation which cannot be calibrated shall be replaced by the Contractor, if considered to be unserviceable or unsuitable by the QP Engineer.

13.3.4 Upon request, the Contactor shall permit the QP Engineer or his Appointed Painting

Inspector to use any item of inspection equipment, to assess its reliability, accuracy and suitability for the proposed inspection activity. If any item is deemed to be inadequate to carry out an inspection activity, an alternative item that is acceptable to the QP Engineer shall be provided by the Contractor.



13.4 PREPARATORY AND COATING INSPECTION AND TEST WORK 13.4.1 PRIOR TO SURFACE PREPARATION 13.4.1.1 Presence of surface-breaking laminations and sharp edges. All surfaces

shall be visually inspected. 13.4.1.2 Presence of gross oil, grease and particulate matter contamination. Surfaces

shall be visually inspected.

13.4.1.3 Basic rust grade of uncoated metal surfaces or degree of coating breakdown of coated metal surfaces. Shall be assessed by visual inspection in conjunction with Standard ISO 8501 Part 1 or SSPC-Vis 1 for uncoated metal surfaces and ISO 4628 Part 3 or ASTM D610 (SSPC-Vis 2) for coated metal surfaces.

13.4.1.4 Presence of residual oil or grease contamination on solvent washed

and fresh water rinsed surfaces. Shall be tested with atomised water spray from a spray gun containing fresh water in accordance with ASTM F21. A clean dry rag shall be used for subsequently drying the metal.

13.4.1.5 Presence of residual chlorides on surfaces, especially stainless steel.

(Subsidiary test that shall be carried out at the discretion of the QP Engineer). Shall be tested with silver nitrate solution using a small dropper bottle containing acidified silver nitrate solution. If a white precipitate is formed, indicating the presence of chlorides, the matter shall be referred back to the QP Engineer for quantitative assessment. A wash bottle and dry rag shall be used for removing the test solution.

13.4.2 THROUGHOUT THE WORKING DAY

13.4.2.1 Relative humidity and dewpoint of the atmosphere. Shall be measured in

accordance with Method B of ASTM E337 using a whirling psychrometer (wet and dry bulb thermometers) in conjunction with Hydrometric Tables.

13.4.2.2 Metal surface temperature. Shall be measured using a suitable contact

thermometer. 13.4.3 BEFORE AND DURING SURFACE PREPARATION 13.4.3.1 Type, grade and cleanliness of abrasive used for blast cleaning. The

information marked on the labels of the bags of abrasive shall be recorded. Recycled abrasive and, at the discretion of the QP Engineer, expendable abrasive shall be tested for oil, grease and salt contamination. For oil and grease contamination, the abrasive shall be agitated in a 1:1 ratio with fresh water for two minutes in a vial, left stand for 10 minutes and then agitated for a further two minutes. The surface of the water shall then be checked for floating oil. For salt contamination, the abrasive shall be agitated in a set ratio with deionised water for five minutes in a container and the solution electrical conductivity measured in accordance with ISO 8502 Part 9. The result shall be approved by the QP Engineer



13.4.3.2 Presence of oil or water in compressed air used for blast cleaning. A piece of

clean white absorbent paper or cloth shall be held at the air outlet at a suitably low operating pressure in accordance with ASTM D4285.

13.4.3.3 Air pressure used for blast cleaning. Shall be measured at the blasting nozzle by

inserting a hypodermic needle pressure gauge in the air line adjacent to the nozzle. 13.4.3.4 Standard of surface cleanliness produced. Shall be assessed on blast cleaned,

power tool or mechanically cleaned surfaces by visual inspection using ISO Standard 8501Part 1 and Supplement or SSPC-Vis 1 or Vis 3.

13.4.3.5 Profile height of blast cleaned surfaces. Shall be measured using a suitable

grade of Testex replica tape plus a portable micrometer gauge or a suitable surface profile comparator gauge in accordance with NACE RP 0287 or ASTM D4417 Method C.

13.4.3.6 Quantity and quality of residual dust and particulate matter on blast cleaned

surfaces. Shall be assessed using transparent self-adhesive tape, a small pocket microscope and Standard ISO 8502 Part 3.

13.4.3.7 Presence of residual millscale on steel surfaces. (Subsidiary test which shall

be carried out at the discretion of the QP Engineer). Shall be detected using a small dropper bottle containing acidified copper sulphate solution. Discontinuities in the deposited copper layer indicate the presence of residual millscale. The test area shall be locally reblasted to remove the copper layer and any residual test solution.

13.4.3.8 Presence of iron salts on stainless steel and non-ferrous metal surfaces.

(Subsidiary test which shall be carried out at the discretion of the QP Engineer). Shall be detected using a small dropper bottle containing potassium ferricyanide solution. If a bright blue colouration results, indicating the presence of iron salts, the matter shall be referred back to the QP Engineer for quantitiative assessment. A wash bottle and dry rag shall be used for subsequently removing the test solution.

13.4.3.9 Presence of residual chlorides on cleaned surfaces. (Subsidiary test that shall

be carried out at the discretion of the QP Engineer). Shall be detected as in Sub-clause 13.4.1.5. If necessary, quantitative assessment shall be made by obtaining a sample from the surface in accordance with ISO 8502 Part 6 and either measuring its electrical conductivity in accordance with ISO 8502 Part 9 or analysing it titrimetrically for chloride in accordance with ISO 8502 Part 10.

13.4.4 PRIOR TO AND DURING PAINT & WRAPPING APPLICATION 13.4.4.1 Type, brand and condition of primer, adhesive, paint and wrapping tape used.

The information marked on the labels of the primer, paint and tape containers, including batch numbers and expiry dates, shall be recorded and the product condition ascertained. Samples may be taken at the discretion of the QP Engineer.



13.4.4.2 Presence of rust on blast cleaned surfaces at time of primer application. Surfaces shall be carefully visually examined in good light, with all areas evenly illuminated to a level of not less than 500 lux daylight or artificial light.

13.4.4.3 Time between blast cleaning and priming. Shall be established by recording and

reviewing the time at which blast cleaning was started immediately before priming. 13.4.4.4 Primer, undercoat and topcoat paint thickness and uniformity. Shall be

measured by taking random wet film thickness measurements on each coat of paint immediately after application using a stainless steel comb or wheel gauge. Systematic dry film thickness measurements shall subsequently be taken on the paint film after each coat has dried using a QP approved model magnetic or eddy current dry film thickness gauge in accordance with SSPC-PA 2. All coats shall also be visually inspected for defects and non-uniformities.

13.4.4.5 Overcoating periods for paints. Shall be established by recording the time at

which each coat of paint was applied and relating this to the Paint Manufacturer’s recommended overcoating period for the product at the prevalent metal temperature

13.4.5 AFTER PAINT AND WRAPPING APPLICATION

13.4.5.1 Thickness and uniformity of complete paint coating or wrapping. Shall be

measured by carrying out a detailed systematic dry film thickness measurement survey on all areas using a QP approved model dry film thickness gauge in accordance with SSPC-PA 2.

13.4.5.2 Final appearance of paint film or wrapping. Shall be approved by careful visual

inspection of the fully coated or wrapped surfaces, to ensure that they are free from runs, sags, orange peeling, fish eyes, overspray, dirt and grit entrapment, wrinkles, open joints and mechanical damage .

13.4.5.3 Curing time for complete paint coating Shall be established by recording the time

at which the topcoat paint was applied and relating this to the Paint Manufacturer’s recommended full coating cure period at the prevalent metal temperature. Supplementary double rub or modified thumb cure tests using a suitable solvent and/or abrasion with emery paper may be carried out to confirm the degree of cure.

13.4.5.4 Presence of holidays in complete paint film or wrapping tape. (Requirement

for this test shall depend upon the project specification and the nature of the component being coated or wrapped). Shall be detected by carrying out holiday testing in accordance with NACE RP 0188 using a QP approved low or high voltage DC holiday detection equipment, depending upon the coating or wrapping thickness

13.4.5.5 Adhesion of coating. (Subsidiary test that shall be carried out at the discretion of

the QP Engineer). Shall be measured on the dry paint film using a cemented dolly and a pull-off measurement device in accordance with ASTM D4541. The measured coating adhesion strengths shall be referred to the Paint Manufacturer for approval.



13.4.5.6 Identification of areas for repair. Areas of the paint coating or wrapping that require repair shall be carefully identified on the components themselves and recorded in the reports so that these can readily be reinspected during and upon completion of the repair work.

13.5 INSPECTION EQUIPMENT REQUIREMENTS

13.5.1 The following inspection equipment shall be supplied in good working order at

each work site by the Contractor.

(a) A whirling or sling psychrometer and hydrometric tables. (b) A contact thermometer with a suitable temperature range. (c) A small spray gun containing potable or distilled water. (d) A hypodermic needle pressure gauge with a suitable pressure range. (e) Either a suitable grade of Testex tape plus a portable micrometer gauge or an

approved surface profile comparator gauge. (f) A roll of transparent self-adhesive tape and a pocket microscope.

(g) Sufficient stainless steel combs or wheel type wet film thickness gauges for all painters and inspectors.

(h) Several approved model magnetic or eddy current dry film thickness gauges with suitable shims.

(i) ISO Standard 8501 Part 1 plus Supplement, ISO 8502 Part 3 and ISO 4628 Part 3 and/or ASTM D610.

13.5.2 The following inspection equipment shall, as a minimum, be supplied by the

Contractor if the contract or the QP Engineer requires them. (a) A small dropper bottle containing acidified silver nitrate solution.

(b) A small dropper bottle containing acidified copper sulphate solution. (c) A small dropper bottle containing potassium ferricyanide solution. (d) Standard self-adhesive extraction sample patches. (e) Electrical conductivity meter.

(f) An approved model high or low voltage D.C. holiday detector. (g) A set of dollies, a tube of epoxy cement and a pull-off measuring device. Alternative specialised inspection equipment may be provided for specific types of

inspection and testing, subject to approval by the QP Engineer. 13.5.3 The dry film thickness gauges shall be calibrated using an insulating shim of similar

thickness to that of the partial or complete paint film to be inspected held over a sample of the same material as that to be painted with a similar blast cleaned surface profile, in accordance with SSPC-PA 2. The calibration sample could be a plate of the substrate material blasted to a standard agreed with the QP Engineer. The gauges shall be calibrated at the start of the working day, at least twice during each shift when in use and when a change in the coating thickness range occurs.

13.5.4 Holiday Detection shall be carried out when it is required by the project specification

or at the direction of the QP Engineer, to ensure the integrity of a paint coating or wrapping. It is typically required for tank and vessel linings and buried or immersed coatings and wrappings. The test voltage used shall be according to NACE RP 0188. All safety guidelines and rules shall be followed when using this equipment.



14.0 QUALITY ASSURANCE REQUIREMENTS 14.1 The Contractor shall be fully responsible for ensuring that all surface preparation,

painting and wrapping work meets the relevant QP quality control (QC) standards, in addition to being carried out in a timely and professional manner. This will require him to use well trained and suitably skilled operators and supervisory staff and good quality, well maintained preparatory and application equipment and inspection tools.

14.2 The Contractor and his Sub-Contractors shall operate a Quality Management System

meeting the requirements of the relevant parts of EN ISO 9001. Guidance on Contractor conformance with the requirements of EN ISO 9001 is given in QP Quality System Procedure QSP-QC-09.

14.3 Prior to placement of the contract, the Contractor and his Sub-Contractors shall

demonstrate the compliance of their Quality Management System with QP requirements by submit their Quality Assurance (QA) Manual for review and approval. As a minimum, the QA Manual shall contain:-

(a) A company profile and Quality Policy Statement. (b) A management structure organigram and details of individual managerial

responsibilities. (c) A detailed list of all the activities carried out by the company with their interactions,

preferably accompanied by a Flowchart. (d) The Quality Control Plans for each activity from material purchasing and handling

through to final inspection, testing and document control, including the treatment of non-conformances and corrective actions.

(e) A Document Control System for the review and update of procedures and the retention of quality control records related to each contract.

(f) Employee training and education system and records. (g) Auditing methods procedures, including incident/accident investigation. (h) Safety and environmental policy and assessment of each activity.

14.4 The Contractor and his Sub-Contractors shall be subject to Audit by QP prior to

placement of the contract and during the term of the contract, as is deemed necessary. 14.5 Prior to the commencement of the work, the Contractor shall submit his Quality

Inspection and Test Plan to the QP Engineer for review. This shall detail the individual preparation, painting and wrapping activities involved and the inspection and test methods that will be used to ensure that they are carried out to an acceptable standard. The Plan will generally be in tabular form and will indicate the type and level of inspection and testing that is required at each stage of the work. It should also contain references to verifying documents and the personnel responsible for each activity. A typical Quality Inspection and Test Plan Checklist is shown as Table 3.

14.6 All personnel involved in the preparation, painting and wrapping work and any Sub-

Contractor proposed for this work shall be formally approved by the QP Engineer, possibly as indicated in Sub-clause 6.5, before the work begins.



14.7 Prior to commencement of the work, a formal minuted Pre-start Meeting shall be held between the QP Engineer, Contract Administrator, relevant Contractor management and supervisory staff and the Painting Inspector. The full scope of the work required under the contract shall be discussed. All issues relating to the clarity or consistency of the surface preparation and/or painting and wrapping requirements detailed within the tender documents and on relevant drawings shall be formally raised and clarified at this meeting. This will enable the quality requirements for the work to be mutually agreed.

15.0 DOCUMENTATION 15.1 All correspondence, drawings, instructions, data sheets, design calculations and all

other written information shall be in English language. In the case of dual languages, one language shall be English and the other Arabic.

15.2 All dimensions and measurements shall be in SI units, unless otherwise specified. 15.3 The Contractor shall provide QP with his fully detailed written work proposals,

procedures, material data sheets, material test results and test certificates. 15.4 The Contractor shall maintain a comprehensive recording and reporting system on all

aspects of surface preparation, paint and wrapping application and Quality Assurance inspection and testing. This shall as a minimum meet all the requirements of this Specification and QSP-QC-09. A final report shall be submitted to QP, summarising all the work performed and the inspection and test results for approval.

15.5 All documents, from texts and specifications to data sheets and drawings, shall be

provided with electronic files in the approved software of MS Word, Excel and Auto Cad. Design calculations shall also be submitted in the approved software system agreed with QP.



16.0 PROTECTIVE SYSTEM CLASSIFICATION BY AREA, SERVICE AND MATERIAL

SCHEDULE NO.

DESCRIPTION OF AREA, SERVICE AND MATERIAL

1Un General Exposure to Atmosphere – New Construction of Uninsulated Items

1In General Exposure to Atmosphere – New Construction of Insulated Items

1F General Exposure to Atmosphere – New Construction of Fireproofed Items

2Un General Exposure to Atmosphere – Maintenance of Uninsulated Items

2In General Exposure to Atmosphere – Maintenance of Insulated Items

2F General Exposure to Atmosphere – Maintenance of Fireproofed Items

3 Uninsulated Steel With a Design Temperature of 120-400°C

4 Insulated Steel With a Design Temperature of 120-250°C

5 Items Exposure to Seawater and Seaspray in Splash Zone

6 Internal Surfaces of Steel Hydrocarbon and Water Storage Tanks

7 Underside of Steel Storage Tank Floor Plates

8 Internal Vessel Surfaces Subject to Pressure and/or Corrosive Service

9 Zinc Coated Steel Surfaces

10 Helideck and Walkway Non-Skid Surfaces

11 Buried and Fully Immersed Pipelines

12 Stainless Steel and Non-Ferrous Metal Surfaces

13 Self-Adhesive Tape Wrapping for Buried and Immersed Pipelines and Steelwork



17.0 COATING AND WRAPPING SCHEDULES 17.1 The following 17 Coating and Wrapping Schedules are designed to cover all the types

of equipment, exposure locations and conditions and constructional metals that are likely to be encountered in QP facilities.

17.2 The preparatory and painting or wrapping requirements are shown in sequential order

and require to be fully followed. The only basis for a deviation from a Schedule requirement is by prior formal written agreement from the QP Engineer.

17.3 Attention is drawn to the Notes at the bottom of each Schedule, which should be

consulted carefully before any paint is purchased or any work is planned or carried out.



COATING SCHEDULE 1Un

GENERAL EXPOSURE TO ATMOSPHERE – UNINSULATED NEWLY CONSTRUCTED ITEMS Uninsulated and non-fireproofed new structural steelwork and uninsulated external surfaces of new carbon steel tanks, vessels, towers, exchangers, heaters, pipework and pipelines located above ground (onshore) and above the Splash Zone (offshore) with a design temperature of between 0°C and 120°C.

SURFACE PRETREATMENT Remove all oil, grease and other contamination using a water-soluble degreaser, followed by thorough fresh water washing.

SURFACE PREPARATION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 50-75 microns. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to Sa 3 standard per ISO 8501-1 plus Supplement. Power tool cleaning to St 3 standard is only acceptable by agreement for areas that are inaccessible or impractical for blast cleaning. Abrade with emery paper or lightly grind areas of partial coating damage.

GENERIC CLASSIFICATION OF COATING PRIMER COAT Two-component zinc-rich epoxy primer* MID COAT 1 High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy** MID COAT 2 High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy** FINAL COAT Two-component aliphatic polyurethane high gloss enamel

APPLICATION OF COATING MICRONS PRIMER COAT Apply zinc-rich epoxy primer by airless spray or brush @ 50 MID COAT 1 Apply MIO-pigmented epoxy by airless spray or brush @ 100 MID COAT 2 Apply MIO-pigmented epoxy by airless spray or brush @ 100 FINAL COAT Apply aliphatic polyurethane enamel by airless spray or brush @ 50 TOTAL DRY FILM THICKNESS = 300

NOTES : 1. * Zinc-rich epoxy primer shall contain a minimum of 90% metallic zinc by weight in the dry film. 2. ** The epoxy midcoat paint shall contain a minimum of 80% MIO by weight in dry film. 3. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations

for paint application shall apply.



COATING SCHEDULE 1In

GENERAL EXPOSURE TO ATMOSPHERE – INSULATED NEWLY CONSTRUCTED ITEMS Insulated newly constructed structural steelwork and insulated external surfaces of new carbon steel tanks, vessels, towers, exchangers, heaters, pipework and pipelines located above ground (onshore) and above the Splash Zone (offshore) with a lower design temperature of down to -46°C or an upper design temperature of up to 120°C.



GENERIC CLASSIFICATION OF COATING PRIMER COAT Two-component zinc-rich epoxy primer* MID COAT 1 High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy** MID COAT 2 High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy**

APPLICATION OF COATING MICRONS PRIMER COAT Apply zinc-rich epoxy primer by airless spray or brush @ 50 MID COAT 1 Apply MIO-pigmented epoxy by airless spray or brush @ 100 MID COAT 2 Apply MIO-pigmented epoxy by airless spray or brush @ 100 TOTAL DRY FILM THICKNESS = 250

NOTES : 1. * Zinc-rich epoxy primer shall contain a minimum of 90% metallic zinc by weight in the dry film. 2. ** The epoxy midcoat paint shall contain a minimum of 80% MIO by weight in dry film. 3. Areas that protrude through the insulation also require a 50 micron thick coat of aliphatic

polyurethane high gloss topcoat paint. 4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 1F

GENERAL EXPOSURE TO ATMOSPHERE – FIREPROOFED NEWLY CONSTRUCTED ITEMS Fireproofed newly constructed structural steelwork and fireproofed external surfaces of new carbon steel vessels, towers, exchangers, heaters, pipework and pipelines located above ground (onshore) and above the Splash Zone (offshore) with a design temperature of between 0°C and 120°C.



GENERIC CLASSIFICATION OF COATING (Please see Note 1*) PRIMER COAT Two-component zinc phosphate-pigmented epoxy primer MID COAT High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy**

APPLICATION OF COATING MICRONS PRIMER COAT Apply zinc phosphate-pigmented epoxy primer by airless spray or brush @ 50 MID COAT Apply MIO-pigmented epoxy by airless spray or brush @ 100 TOTAL DRY FILM THICKNESS = 150

NOTES : 1. * Alternative proprietary protective systems may have to be used where the fireproofing

manufacturer considers that the application of the specified coating system will prejudice the fireproofing guarantee. In such situations, manufacturer’s requirement shall be mandatory.

2. ** The epoxy midcoat paint shall contain a minimum of 80% MIO by weight in dry film. 3. Areas that protrude through the fireproofing also require to be coated with a second 100

micron thick coat of the specified midcoat paint and 50 micron thick coat of aliphatic polyurethane high gloss topcoat paint.

4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations for paint application shall apply.



COATING SCHEDULE 2Un

GENERAL EXPOSURE TO ATMOSPHERE - UNINSULATED EXISTING ITEMS MAINTENANCE Uninsulated and non-fireproofed existing structural steelwork and uninsulated external surfaces of existing carbon steel tanks, vessels, towers, exchangers, heaters and pipework located above the ground (onshore) and splash zone (offshore) with a design temperature of between 0°C and 120°C


SURFACE PREPARATION Dependent upon condition of existing paintwork. 1. No visible coating breakdown Ri 0 (ASTM No 10) level (where overcoating for aesthetic or

other reasons). Abrade pretreated surfaces with emery paper for good topcoat adhesion. 2. Partial or variable coating breakdown with primer intact or localised underrusting to no

more than Ri 3 (ASTM No. 6) level. Locally blast clean degraded areas to Sa 2.5 standard as per ISO 8501-1 plus Supplement. Power tool clean to St 3 standard if blast cleaning impractical.

3. More extensive coating breakdown to Ri 4 (ASTM No. 4) level or worse. Fully blast clean surfaces to Sa 2.5 standard per ISO 8501-1 plus Supplement. Power tool cleaning to St 3 standard is only acceptable by agreement for small areas and areas that are impractical for blast cleaning. Use a suitable blast cleaning abrasive to give a surface profile of 50-75 microns.

GENERIC CLASSIFICATION OF COATING PRIMER COAT High-solids two-component polyamide-cured surface-tolerant epoxy primer MID COAT High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy* FINAL COAT Two-component aliphatic polyurethane high gloss enamel

APPLICATION OF COATING MICRONS PRIMER COAT Apply surface-tolerant epoxy primer by brush (preferably) or airless spray** @ 125 MID COAT 1 Apply MIO-pigmented epoxy by airless spray or brush*** @ 125 FINAL COAT Apply aliphatic polyurethane enamel by airless spray or brush @ 50 TOTAL DRY FILM THICKNESS = 300

NOTES : 1. *The epoxy midcoat paint shall contain a minimum of 80% MIO by weight in dry film. 2. ** No primer required for Ri 0 condition surfaces. Patch prime locally blast cleaned areas for

Ri 1 to 3 level breakdown and fully prime surfaces with Ri 4 level or worse coating breakdown. 3. ***Apply full midcoat to surfaces with Ri 1 level or worse breakdown after full or patch priming. 4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 2In

GENERAL EXPOSURE TO ATMOSPHERE – INSULATED EXISTING ITEMS MAINTENANCE Insulated existing structural steelwork and insulated external surfaces of existing carbon steel tanks, vessels, towers, exchangers, heaters, pipework and pipelines located above ground (onshore) and above the Splash Zone (offshore) with a lower design temperature of down to -46°C or an upper design temperature of up to 120°C.


SURFACE PREPARATION Dependent upon condition of existing paintwork. 1. No visible coating breakdown Ri 0 (ASTM No. 10) level. No overcoating required. 2. Partial or variable coating breakdown with primer intact or localised underrusting to no



GENERIC CLASSIFICATION OF COATING PRIMER COAT High-solids two-component polyamide-cured surface-tolerant epoxy primer MID COAT High-build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy*

APPLICATION OF COATING MICRONS PRIMER COAT Apply surface-tolerant epoxy primer by brush (preferably) or airless spray** @ 125 MID COAT 1 Apply MIO-pigmented epoxy by airless spray or brush*** @ 125 TOTAL DRY FILM THICKNESS = 250

NOTES : 1. * The epoxy midcoat paint shall contain a minimum of 80% MIO by weight in dry film. 2. ** Patch prime locally blast cleaned areas for Ri 1 to 3 level breakdown and fully prime

surfaces with Ri 4 level or worse coating breakdown. 3. ***Apply full midcoat to surfaces with Ri 1 level or worse breakdown after full or patch priming. 4. Areas that protrude through the insulation also require a 50 micron thick coat of aliphatic

polyurethane high gloss topcoat paint. 5. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 2F

GENERAL EXPOSURE TO ATMOSPHERE–FIREPROOFED EXISTING ITEMS MAINTENANCE Fireproofed newly constructed structural steelwork and fireproofed external surfaces of new carbon steel vessels, towers, exchangers, heaters, pipework and pipelines located above ground (onshore) and above the Splash Zone (offshore) with a design temperature of between 0°C and 120°C.


SURFACE PREPARATION Dependent upon condition of existing paintwork. 1. No visible coating breakdown Ri 0 (ASTM No. 10) level. No overcoating required. 2. Partial or variable coating breakdown with primer intact or localised underrusting to no



GENERIC CLASSIFICATION OF COATING (Please see Note 1*) PRIMER COAT High-solids two-component polyamide-cured surface-tolerant epoxy primer**

APPLICATION OF COATING MICRONS PRIMER COAT Apply surface-tolerant epoxy primer by brush (preferably) or airless spray @ 150 TOTAL DRY FILM THICKNESS = 150

NOTES : 1. * Alternative proprietary protective maintenance coatings may have to be used where the

fireproofing manufacturer considers that the application of the specified coating system will prejudice the fireproofing guarantee. In such situations, the manufacturer’s requirement shall be mandatory.

2. ** Patch prime locally blast cleaned areas with Ri 1 to 3 level breakdown and fully prime surfaces with Ri 4 level or worse coating breakdown.

3. Areas that protrude through the fireproofing also require to be coated with a 100 micron thick coat of MIO-pigmented epoxy midcoat paint (containing a minimum of 80% MIO in the dry film) plus a 50 micron thick coat of aliphatic polyurethane high gloss topcoat paint.




COATING SCHEDULE 3

UNINSULATED STEEL ITEMS WITH A DESIGN TEMPERATURE OF 120°°°°C TO 400°°°°C External surfaces of uninsulated carbon steel tanks, vessels, towers, exchangers, heaters and pipework operating at elevated design temperatures.

SURFACE PRETREATMENT Remove all oil, grease and other contamination using a water soluble degreaser, followed by thorough fresh water washing.

SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitable abrasive to give a surface profile amplitude of 35-50 microns. Power tool cleaning is not acceptable for this system. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement. MAINTENANCE 1. No visible breakdown of primer or topcoat Ri 0 (ASTM No.10) level (where overcoating

required). Lightly abrade pretreated surfaces with emery paper for good topcoat adhesion. 2. Localised or extensive breakdown of primer or topcoat paint to Ri 1 or ASTM No. 8 level

or worse. Blast clean affected areas to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitable abrasive to give a surface profile of 35-50 microns.

GENERIC CLASSIFICATION OF COATING PRIMER COAT* Ethyl-based two-component inorganic zinc silicate primer MID COAT Acrylic modified silicone FINAL COAT Acrylic modified silicone

APPLICATION OF COATING MICRONS PRIMER COAT Apply zinc silicate primer by air or airless spray @ 50** MID COAT Apply silicone acrylic by air or airless spray @ 25 FINAL COAT Apply silicone acrylic by air or airless spray @ 25 TOTAL DRY FILM THICKNESS = 100

NOTES : 1. * Locally damaged areas of primer shall be repaired with a 50 micron thick brush-applied coat

of a suitable high temperature resistant zinc-containing primer. 2. ** Zinc silicate coating thickness shall not exceed 75 microns at any point. 3. No primer is required if the intact coating requires to be overpainted for aesthetic reasons. 4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 4

INSULATED STEEL ITEMS WITH A DESIGN TEMPERATURE OF 120°°°°C TO 250°°°°C External surfaces of insulated carbon steel vessels, towers, exchangers, heaters and pipework operating continuously at elevated design temperatures.


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 and Supplement using a suitably sized abrasive to produce a surface profile amplitude of 35-50 microns. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to Sa 3 standard as per ISO 8501-1 and Supplement. Power tool cleaning to St 3 standard is only acceptable by agreement for areas that are impractical for blast cleaning. Abrade with emery paper or lightly grind areas of partial coating damage. MAINTENANCE 1. No visible coating breakdown Ri 0 (ASTM No. 10) level. No coating repair required. 2. Partial or extensive breakdown to Ri 1 (ASTM No. 8) level or worse. Blast clean affected

areas to Sa 2.5 standard as per ISO 8501-1 to give a surface profile of 35-50 microns. Power tool cleaning to St 3 standard only acceptable by agreement for impractical areas to blast clean.

GENERIC CLASSIFICATION OF COATING* PRIMER COAT High-temperature resistant aluminium-pigmented oleo-resinous** FINAL COAT High-temperature resistant aluminium-pigmented oleo-resinous

APPLICATION OF COATING MICRONS PRIMER COAT Apply aluminium-pigmented oleo-resinous by air or airless spray @ 50 FINAL COAT Apply aluminium-pigmented oleo-resinous by air or airless spray @ 50 TOTAL DRY FILM THICKNESS = 100

NOTES : 1. Insulated steel surfaces that will be operating continuously at temperatures of over 250°°°°C

do not require to be painted unless specified in the Contract or requested by the QP Engineer. 2. *Insulated surfaces of equipment that will be operating only intermittently at temperatures

over 250°°°°C shall be prepared as for this Schedule and protected with two spray-applied coats of a suitable zinc-free inorganic silicate primer, each applied to a dry film thickness of 75 microns.

3. **Written assurance shall be obtained from the Paint Manufacturer that the paint product offered has acceptable high temperature resistance.




COATING SCHEDULE 5

ITEMS EXPOSED TO SEAWATER & SEASPRAY IN THE SPLASH ZONE Areas of steel structures and pipework subject to partial immersion in seawater and seaspray in the Splash Zone, such as offshore platforms, boat landings and jetties (but excluding riser lines).


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. Power tool cleaning is not acceptable for even local repair of this coating system when fully cured. Sweep blast cleaning may be used by agreement. MAINTENANCE Dependent upon condition of existing paint coating. 1. No visible coating breakdown Ri 0 (ASTM No. 10). No overcoating required. 2. Partial coating breakdown with localized underrusting to no more than Ri 3 (ASTM No. 6)

level. Locally blast clean degraded areas to Sa 2.5 standard as per ISO 8501-1plus Supplement 3. More extensive coating breakdown to Ri 4 (ASTM No. 4) level or worse. Blast clean to Sa

2.5 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile of 75-100 microns. Power tool cleaning to St 3 standard is only acceptable by agreement for areas that are impractical for blast cleaning.

GENERIC CLASSIFICATION OF COATING PRIMER COAT Two-component high solids glassflake-reinforced polyamine-cured epoxy FINAL COAT Two-component high-solids glassflake-reinforced polyamine-cured epoxy

APPLICATION OF COATING MICRONS PRIMER COAT Apply glassflake-reinforced epoxy by airless spray* @ 500 FINAL COAT** Apply glassflake-reinforced epoxy by airless spray* @ 500 TOTAL DRY FILM THICKNESS = 1000

NOTES : 1. * Brush application shall be used for stripe painting and touch-up areas. 2. ** More than two coats may be required to achieve the required total dry film thickness. 3. Full coating shall be confirmed to be free of pinholes by holiday detection testing as practicable. 4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 6

INTERNAL SURFACES OF STEEL HYDROCARBON & WATER STORAGE TANKS Topside floor surface of hydrocarbon and water tanks, bottom and top 1.8m of internal shell surface of hydrocarbon tanks and full internal shell and underside roof surface of potable / non-potable water tanks.

SURFACE PRETREATMENT Remove all oil, grease and other contamination using a water soluble degreaser, followed by low pressure fresh water washing.

SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile of 75-100 microns and remove all abrasive and dust by vacuum cleaner. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. Power tool cleaning to St 3 standard is only acceptable by agreement for areas that are inaccessible or impractical for blast cleaning. MAINTENANCE Dependent on the condition of the existing paint coating. As for Schedule 5 Maintenance Surface Preparation requirements.

GENERIC CLASSIFICATION OF COATING PRIMER COAT * Two-component high-build solvent-free polyamide-cured epoxy**/*** FINAL COAT Two-component high-build solvent-free polyamide-cured epoxy**/***

APPLICATION OF COATING MICRONS PRIMER COAT Apply solvent-free epoxy by airless spray @ 300 FINAL COAT Apply solvent-free epoxy by airless spray @ 300 TOTAL DRY FILM THICKNESS = 600

NOTES: 1. * Epoxy holding primer may be used on blast cleaned surfaces if authorised by the QP

Engineer. Request with data, confirming its compatibility with the epoxy paint, shall be submitted 2. ** Non-tainting epoxy paint with Health Certification is required inside potable water tanks. 3. ***Alternative pigmented epoxy coatings may be used subject to satisfactory QP field testing. 4. Full coating shall be subjected to high voltage holiday detection to ensure there are no pinholes 5. A cathodic protection system may be installed in water tanks, to guard against premature

coating breakdown. No internal cathodic protection is required for hydrocarbon service tanks. 6. If cathodic protection is installed, the applied coating system must be compatible with C.P. 7. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations

for paint application and curing, including the provision of adequate ventilation, shall apply.



COATING SCHEDULE 7

UNDERSIDE OF STEEL STORAGE TANK FLOOR PLATES Underside surface of steel storage tank floor plates prior to laying and welded fabrication.


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns.

GENERIC CLASSIFICATION OF COATING PRIMER COAT Two-component polyamide-cured surface-tolerant epoxy primer FINAL COAT Two-component polyamide-cured surface-tolerant epoxy primer

APPLICATION OF COATING MICRONS PRIMER COAT Apply surface-tolerant epoxy primer by airless spray* @ 200 FINAL COAT Apply surface-tolerant epoxy primer by airless spray* @ 200 TOTAL DRY FILM THICKNESS = 400

NOTES : 1. *Brush application for touch-up areas only. 2. A cathodic protection system shall be installed beneath the tank floor to protect the underside

surface against soilside corrosion in areas of coating damage due to welding / paint breakdown. 3. Specified coating system must be confirmed by Manufacturer as being compatible with C.P. 4. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 8

INTERNAL VESSEL SURFACES SUBJECT TO PRESSURE AND/OR CORROSIVE SERVICE Internal lining of vessels, exchangers and tanks for service at temperatures up to 120°C that are subject to marked pressure/temperature changes and/or acidic or other aggressive chemicals, including gasohols.


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile of 75-100 microns and remove all abrasive and dust by vacuum cleaner. REPAIR OF DAMAGED COATING (See Clause 11.4) Vacuum or spot blast clean to ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. Power tool cleaning is not acceptable for even local repair of this coating. Abrade partially damaged coatings with emery paper and solvent wipe them. MAINTENANCE Dependent upon the condition of the existing coating. As for Schedule 5 Maintenance Preparation requirements, with the exceptions that all blast cleaning shall be to Sa 3 standard and power tool cleaning is not acceptable.

GENERIC CLASSIFICATION OF COATING PRIMER COAT Two component high-build solvent-free modified epoxy*/** FINAL COAT Two component high-build solvent-free modified epoxy*/**

APPLICATION OF COATING MICRONS PRIMER COAT*** Apply solvent-free modified epoxy by trowel or brush**** @ 500 FINAL COAT*** Apply solvent-free modified epoxy by trowel or brush**** @ 500 TOTAL DRY FILM THICKNESS***** = 1000

NOTES : 1. * Assurance shall be obtained from Paint Manufacturer that the coating has acceptable

resistance to all the specified chemicals under the stated temperature and pressure conditions. 2. ** Use of glass flake/ceramic filler is acceptable if required for increased strength and rigidity. 3. *** One or more than two coats of epoxy paint may be applied to achieve the required DFT. 4. **** Coating repairs shall also be carried out by trowel or brush application. 5. ***** Total coating DFT could vary from 500 to 2,000 microns, depending upon product used. 6. The full coating shall be confirmed to be free from pinholes by H.V. holiday detection testing. 7. Coating schedule shall ensure fully curing with good ventilation before it is put into service. 8. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations for paint application and curing, including the provision of adequate ventilation, shall apply.



COATING SCHEDULE 9

ZINC COATED STEEL SURFACES New and weathered galvanized and zinc spray coated structural steelwork, pipework, ladders, handrails, gratings, fencing and other components.


SURFACE PREPARATION NEW CONSTRUCTION Remove soluble zinc corrosion products by scrubbing with a stiff bristle brush during fresh water washing. At QP Engineer’s discretion, lightly sweep blast clean using a fine abrasive. Abrade with emery paper, if pretreatment primer is to be applied. REPAIR OF DAMAGED COATING (See Clause 11.4) If zinc is intact, remove soluble zinc corrosion products by scrubbing with a stiff bristle brush during fresh water washing. If rusting of the steel is evident, remove the rust by lightly abrading affected areas with emery cloth before scrubbing with a stiff bristle brush during fresh water washing. MAINTENANCE As for Repair of Damaged Coating but lightly sweep blast clean rusted areas to Sa 2.5 standard.

GENERIC CLASSIFICATION OF COATING PRIMER COAT */** High-solids two-component polyamide-cured surface-tolerant epoxy primer*** FINAL COAT Two-component aliphatic polyurethane enamel

APPLICATION OF COATING MICRONS PRIMER COAT Apply surface-tolerant epoxy primer by airless spray or brush @ 125 FINAL COAT Apply aliphatic polyurethane enamel by airless spray or brush @ 50 TOTAL DRY FILM THICKNESS = 175

NOTES : 1. * Locally damaged areas of the zinc coating shall be repaired with a 50 micron thick brush-

applied coat of zinc-rich epoxy primer containing 90% minimum of zinc by weight in the dry film. 2. **Polyvinyl butyral etch primer or phosphoric acid-based mordant solution shall be applied

as pretreatment, if the surfaces are not sweep blast cleaned or Paint Manufacturer specifies the need for pretreatment. If pretreatment primer is used, it shall be applied as thinly as possible.

3. ***Written assurance shall be obtained from the Paint Manufacturer that the primer used is suitable for direct application to freshly galvanized steel surfaces, even if sweep blast cleaned.

4. The requirement for zinc coated components to be painted shall be stated in the Contract. 5. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 10

HELIDECK & WALKWAY NON-SKID SURFACES Helidecks and walkway surfaces.


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. MECHANICAL REPAIR Vacuum or spot blast clean to ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. Power tool cleaning to St 3 standard is only acceptable by agreement for areas that are inaccessible or impractical for blast cleaning. MAINTENANCE Dependent on the condition of the existing paint coating. As for Schedule 5 Maintenance Surface Preparation requirements.

GENERIC CLASSIFICATION OF COATING PRIMER COAT * Two-component high-build solvent-free epoxy coating incorporating aggregate particles ** FINAL COAT *** Two-component high-build solvent-free epoxy coating

APPLICATION OF COATING MICRONS PRIMER COAT Apply solvent-free epoxy plus aggregate by airless spray or trowel**** @ 1500 FINAL COAT Apply solvent-free epoxy by airless spray @ 300 TOTAL DRY FILM THICKNESS***** = 1800

NOTES : 1. *Zinc phosphate-pigmented epoxy holding primer, applied to a DFT of 25-50 microns, may

be used on blast cleaned surfaces if authorized by the QP Engineer. A formal request for its use shall be submitted together with data sheets, confirming its compatibility with the epoxy paint.

2. **Aggregate particles shall be 0.4-1.5mm (average 1.0mm) diameter aggregate for helidecks and 0.2-1.2mm (average 0.8mm) diameter aggregate particles for walkways.

3. ***All helideck markings shall be made with brush-applied aliphatic polyurethane topcoat paint. 4. ****Aggregate shall be pre-mixed into the paint used for helidecks prior to application. 5. *****Coating thickness will depend upon density and size of aggregate used. Combination of

aggregate and paint binder for any surface should be based on Manufacturer’s recommendation 6. Deck and walkway coatings shall be confirmed as free from pinholes by H.V. holiday detection 7. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations




COATING SCHEDULE 11

BURIED AND FULLY IMMERSED PIPELINES Pipelines that are either buried or fully immersed in seawater (but not subsea pipelines).

SURFACE PRETREATMENT Remove all oil, grease and other contamination by primary factory degreasing, followed by controlled furnace preheating in a production line.

SURFACE PREPARATION NEW CONSTRUCTION Blast clean to Sa 2.5 standard* as per ISO 8501-1 plus Supplement under controlled factory production conditions using a suitably sized abrasive to give a surface profile of 75-100 microns. REPAIR OF DAMAGED COATING AND WELDED JOINTS Vacuum or spot blast clean to Sa 3 standard as per ISO 8501-1 plus Supplement using a suitably sized abrasive to give a surface profile amplitude of 75-100 microns. Power tool cleaning to St 3 standard is not acceptable for this coating system. MAINTENANCE Dependent upon the condition of the existing coating. As for Schedule 5 Maintenance Preparation requirements.

GENERIC CLASSIFICATION OF COATING PRIMER/FINAL COAT*** Fusion-bonded epoxy powder** JOINT/REPAIR/MAINTENANCE COATING Two-component cold-curing high-build solvent-free amine adduct-cured epoxy

APPLICATION OF COATING MICRONS PRIMER/FINAL COAT*** Apply fusion-bonded epoxy by electrostatic spray and thermally cure (at factory) @ 550 FIELD JOINTS Apply fusion-bonded epoxy by electrostatic spray and thermally cure on site**** OR Apply compatible cold-curing high-build solvent-free epoxy by airless spray***** @ 550 REPAIR/MAINTENANCE COAT Apply compatible cold-curing high-build solvent-free epoxy by trowel/airless spray @ 550 TOTAL DRY FILM THICKNESS = 550

NOTES : 1. * Sa 2.5 standard is the highest preparatory standard guaranteed for factory blast cleaning. 2. ** Epoxy powder / factory-applied F.B.E. coating shall meet requirements of QP-SPC-L-005. 3. *** 50 micron thick aliphatic polyurethane topcoat is required for above-ground pipe sections 4. **** Field-applied, thermally-cured F.B.E. coating shall meet requirements of QP-SPC-L-006. 5. ***** Use of shrink wrapped polyethylene or polypropylene sleeves, applied to QP-SPC-L-

007, may also be considered for field joints, subject to field trials on the product and Contractor. 6. Full coating shall be subjected to a high voltage holiday detection test prior to factory dispatch

and after line fabrication to ensure that it is free from pinholes. 7. F.B.E. Coating QC and test reports shall be approved prior to acceptance of the coated pipe. 8. Concrete weight coating may be applied to submerged pipe sections to counteract buoyancy.



COATING SCHEDULE 12

STAINLESS STEEL AND NON-FERROUS METAL SURFACES Stainless steel, aluminium, copper and nickel alloy pipework, vessels and components with a design temperature of up to 120°C.


SURFACE PREPARATION NEW CONSTRUCTION Blast clean to “white metal” finish (equivalent to Sa 3 standard as per ISO 8501-1) using suitably sized non-metallic abrasive to give a surface profile amplitude of 50-75 microns.* MECHANICAL REPAIR Vacuum or spot blast clean to “white metal” finish (equivalent to Sa 3 standard as per ISO 8501-1) using suitably sized non-metallic abrasive to give a surface profile of 50-75 microns.* Power tool cleaning to “white metal” is only acceptable by agreement for impractical areas to blast clean.** MAINTENANCE As for Schedule 2Un Maintenance Preparation requirements with the exceptions that blast cleaning or (by agreement) power tool cleaning shall be to “white metal” finish (equivalent to Sa 3 standard as per ISO 8501-1) using a suitable non-metallic abrasive or similar metal tool. */**

GENERIC CLASSIFICATION OF COATING PRIMER COAT Two-component zinc-free polyamide-cured epoxy primer MID COAT High build two-component polyamide-cured micaceous iron oxide (MIO)-pigmented epoxy*** FINAL COAT **** Two-component aliphatic polyurethane high gloss enamel

APPLICATION OF COATING MICRONS PRIMER COAT Apply zinc-free epoxy primer by brush or airless spray @ 50 MID COAT Apply MIO-pigmented epoxy by brush or airless spray @ 125 FINAL COAT Apply aliphatic polyurethane enamel by brush or airless spray @ 50 TOTAL DRY FILM THICKNESS = 225

NOTES : 1. * For copper alloys, a fine abrasive shall be used to avoid surface distortion and expansion. 2. ** Power cleaning tools shall be constructed from the same metal as that being cleaned. 3. *** Minimum 80% MIO in the dry film. 4. **** No topcoat is not required for insulated components other than for protruding areas. 5. Requirement to paint stainless steel or nickel alloy items shall be stated in the Contract. 6. Unless otherwise authorized by the QP Engineer, the Paint Manufacturer’s recommendations for paint application shall apply.



COATING SCHEDULE 13

SELF-ADHESIVE TAPE WRAPPING FOR BURIED AND IMMERSED PIPELINES/STEELWORK Pipelines with a design temperature up to 70°C and structural steelwork that are buried (including at road crossings), immersed in water or subject to seaspray (but not subsea pipelines).


SURFACE PREPARATION NEW CONSTRUCTION Preparation and painting prior to tape primer or adhesive application as follows. For the Splash Zone, as per Schedule 5 but with only one coat of paint applied. For buried and fully immersed conditions, apply Schedule 11 Maintenance Coating to 300 um DFT. MECHANICAL REPAIR For Splash Zone, as per Schedule 5. For buried or fully immersed conditions, as per Schedule 11. MAINTENANCE For Splash Zone, as per Schedule 5. For buried or fully immersed conditions, as per Schedule 11.

GENERIC CLASSIFICATION OF COATING WRAPPING PRIMER COAT Rubber or bituminous primer/adhesive. FINAL COAT */** Heavy-duty PVC-backed wrapping tape. EXPOSED FLANGED JOINTS & MACHINED SURFACES (WHERE REQUIRED) Grease-filled plastic caps for fasteners. Inhibited thermoplastic encapsulation for joints / surfaces.

APPLICATION OF COATING PRIMER COAT Apply rubber or bituminous primer/adhesive by brush or spray. FINAL COAT Apply heavy-duty PVC-backed wrapping tape by hand or machine to give smooth uniform profile. EXPOSED FLANGED JOINTS & MACHINED SURFACES Fit grease-filled caps. Apply thermoplastic encapsulation membrane using specialised equipment.

NOTES : 1. * Above-ground sections of tape wrapped pipelines and steelwork that will be exposed to

sunlight shall be overwrapped using an approved U.V.-resistant outer wrapping. 2. ** Buried or immersed sections of tape wrapped pipelines may be protected against stone and

mechanical damage during burial or laying with a loose protective wrapping sleeve. 3. Tape shall be applied to give a smooth uniform profile with 55% minimum tape layer overlap. 4. Prior to and after application of the wrapping tape, the paint coating shall be subjected to a

low or high voltage holiday detection test, to ensure the absence of pinholes. 5. Concrete weight coating may also be applied to subsea pipework to counteract buoyancy. 6. Unless otherwise authorized by the QP Engineer, the Tape Manufacturer’s recommendations

for application and testing of the wrapping tape shall apply.



18.0 COLOUR CODING & IDENTIFICATION SCHEDULES 18.1 The finishing colours of the paint coatings that are to be applied to the various items of

equipment and facilities shall be in accordance with those specified in the Colour Coding Schemes given in Tables 6 to 9. The use or acceptance of different colours to those specified for various items of equipment is subject to the QP Engineer’s approval.

18.2 The colours used for intermediate coats of paint shall be based upon the Paint

Manufacturer’s recommendations. Where a multi-coat paint system is specified, it is desirable for different intermediate coats to be of slightly contrasting colours to distinguish between and identify the individual coats during paint application and inspection (see Sub-clause 11.3.3). However, the colour contrasts should not be so great as to make it difficult to completely obliterate the previous coat.

18.3 Where environmental considerations make it necessary to select an alternative colour

to that recommended, this should be agreed in writing with the QP Engineer prior to commencement of the work.



19.0 APPENDICES 19.1 APPENDIX A. TABLES 19.1.1 The following Tables should be read in conjunction with sections of text and

Schedules to which they relate. 19.1.2 The International Standards referenced in the Tables should also be consulted,

where further clarification of the Table contents is required. 19.1.3 Particular attention should be paid to the Notes accompanying many of the Tables.



TABLE 1. CORRESPONDING DEGREES OF PAINT RUSTING STANDARDS

BASIC DESCRIPTION ISO 4628-3 EURO SCALE ASTM D610 No visible rusting of coating Ri 0 Re 0 No. 10 Localised rusting of 0.05% of coated surface area Ri 1 Re 1 No. 8* Marked localised rusting of 1% of surface area Ri 3 Re 3 No. 6 Widespread localised rusting of 10% surface area Ri 4** Re 5 No. 4 Extensive rusting of up to 50% of surface area Ri 5 Re 7 No. 1 NOTES: 1. European Scale of Rusting is the same as SIS 18 51 11 2. ASTM D610 Standards have been adopted by SSPC as Visual Standard No. 2 3. *No.8 Standard actually specifies less than 0.1% of coated surface area rusted 4. **Ri 4 Standard actually specifies 8% of coated surface area rusted

TABLE 2. CORRESPONDING SURFACE PREPARATION STANDARDS

BASIC DESCRIPTION ISO 8501-1 SSPC NACE

Solvent cleaning SP 1 Thorough hand and power tool cleaning St 2 SP 2 Very thorough power tool cleaning St 3 SP 3/11 Light or brush-off blast cleaning Sa 1 SP 7 No. 4 Thorough or commercial blast cleaning Sa 2 SP 6 No. 3 Very thorough or near white metal blast cleaning Sa 2.5 SP 10 No. 2 Visually clean or white metal blast cleaning Sa 3 SP 5 No. 1 Pickling to white metal SP 8 NOTES: 1. ISO 8501 Part 1 is the same as BS 7079 Part A1 and SIS 05 59 00 2. SSPC and NACE Standards are given in Steel Structures Painting Manual, Volume 2



TABLE 3. TYPICAL PAINTING AND WRAPPING QUALITY INSPECTION AND TEST PLAN CHECKLIST

(SUB) CONTRACTOR COATING SCHEDULE WORK LOCATION DOCUMENT REF. NO. PROJECT TITLE EQUIPMENT CONTRACT NO. DATE ITM. DESCRIPTION OF ITEM INSPECTION REQ’D ACTIONS BY COMMENT S/CON CON QP/TPI

A THROUGHOUT WORKING DAY 1 Safety/condition of equipment/machinery Visual inspection H H H 2 Correct PPE is worn by all personnel Visual inspection H H H 3 Atmospheric relative humidity/dewpoint Psychrometer & Tables I W R/H 4 Metal surface temperature Contact thermometer I W R/H

B BEFORE PREPARATORY CLEANING 1 Work mthds./QC system/safety measures Record inspection I H H 2 Permit to work in order and authorised Record inspection H H H 3 Control/inspection instruments calibrated Visual/record inspection H H H 4 Presence of surface-breaking defects Visual inspection I R R 5 Defects found are satisfactorily removed Visual inspection I R R 6 Presence of gross surface contamination Visual inspection I R R 7 Rust grade/degree of coating breakdown Visual inspection I H H 8 Type of water/brand of degreasing agent Visual inspection I R R 9 Presence of residual oil or grease Water spray test I R R

10 Presence of residual chlorides* Silver nitrate test I R R 11 Type, brand & grade of abrasive used Visual inspection I R R 12 Acceptance of power/hand tool cleaning Visual inspection I W W/H

C DURING PREPARATORY CLEANING 1 Batch number & date of abrasive used Visual inspection I R R 2 Presence of oil/water in compressed air Blotting paper at exhaust I R R 3 Air pressure used for blast cleaning Hypodermic needle gge. I W W 4 Blast cleaning surface cleaning standard Visual inspection v. Std. I W/H W/H 5 Profile height of blast cleaned surfaces Replica tape/comparator I W/H W/H 6 Residual dust and matter on surfaces Tape/pocket microscope I W W 7 Type/condition of power/hand tools used Visual inspection I R R 8 Standard of power/hand tool cleanliness Visual inspection I W/H W/H 9 Presence of residual millscale* Copper sulphate test I R R 10 Presence of iron salts* Pot. ferricyanide test I R R 11 Presence of residual chlorides* Silver nitrate test I R R



TABLE 3. TYPICAL PAINTING AND WRAPPING QUALITY INSPECTION AND TEST PLAN CHECKLIST (CONTINUED)

D DURING PAINT AND WRAPPING TAPE APPLICATION 1 Types, brands, dates, condition of paints Visual inspection I R R 2 Paint storage conditions Visual inspection I R R 3 Paint mixing procedure & control Visual inspection I W W 4 Rust present on blast cleaned surfaces Visual inspection I R R 5 Time between blast cleaning & priming Record inspection I R R 6 Paint application technique & quality Visual inspection I W W 7 Stripe priming of edges, corners, crevices Visual inspection I R R 8 Full primer coat thickness Wet/dry film tkns. check I H H 9 Primer profile & appearance Visual inspection I H H 10 Time between primer & first midcoat Record inspection I R R 11 First midcoat & stripe thickness Wet/dry film tkns. check I W W 12 First midcoat & stripe profile/appearance Visual inspection I W W 13 Time between first & second midcoat Record inspection I R R 14 Second midcoat & stripe thickness Wet/dry film thickness I W W 15 Second midcoat /stripe profile/appearance Visual inspection I W W 16 Time between second midcoat & topcoat Record inspection I R R 17 Complete paint coating thickness Wet/dry film tkns. check I H H 18 Complete paint coating profile/appearance Visual inspection I H H 19 Time between final midcoat/tape adhesive Record inspection I R R 20 Adhesive/primer thickness Wet film tkns. check I H H 21 Adhesive/primer profile & appearance Visual inspection I H H 22 Time between adhesive & tape wrapping Record inspection I R R 23 Complete paint and wrapping thickness Wet/dry film tkns. check I H H 24 Wrapping profile & appearance Visual inspection I H H 25 Final curing time for coating system Record inspection I R R 26 Presence of holidays in coating/wrapping Low or high voltage test I H H 27 Adhesion of coating &/or wrapping* Dolly pull-off test I W W 28 Identification of areas for repair Use of indelible marker I W W 29 Coating/wrapping appearance after repair Visual inspection I H H 30 Complete QIT form & associated docs. Record inspection I H H

KEY: * Subsidiary inspection test to be carried out at discretion of Corporation's Engineer I Inspection item to be carried out where operation involved forms part of Contract workscope R Inspection reports and records to be fully reviewed and approved W Inspection activity to be witnessed and approved H Mandatory Hold Point in schedule beyond which work shall not proceed without formal approval SUB-CONTRACTOR CONTRACTOR Q.P. / T.P.I. Signature Name Position Date



TABLE 4. TYPICAL PAINTING AND WRAPPING DAILY INSPECTION REPORT (SUB) CONTRACTOR COATING SCHEDULE WORK LOCATION DOCUMENT REF. NO. PROJECT TITLE ITEMS COATED CONTRACT NO. DATE WEATHER CONDITIONS Time Rel. Humidity (%) Dewpoint (°°°°C) Metal Temp. (°°°°C) SURFACE CONDITION AND DEGREASING (Circle as necessary) Original Status Coated Wrapped Bare Metal Condition Defect-free Laminated Ground Rejected Metal Rust Grade A B C D Coating Breakdown Ri 0 Ri 3 Ri 4 Ri 5 Contamination Heavy Light Degreased Water Washed Degreasing Agent ……………………. Swabbed Sprayed Water Tested SURFACE PREPARATION (Circle as necessary) Method Dry Blasting Sweep Blasting Wet Blasting Power Tool Hand Tool Abrasive Used Type………………. Brand………………. Batch No…………... Size Range……….. Prep. Standard Sa 3 Sa 2.5 Sa 2 St 3 Other…………. Profile Ht. (um) 35-50 50-75 75-100 Range………... Using…………. Residual Matter Class………… Rating………. Other Tests Millscale …..…Yes/No Chlorides…..…. Yes/No Iron Salts…..….Yes/No PAINT AND WRAPPING TAPE APPLICATION (Circle as necessary) Method Airless Spray Air Spray Brush Trowel Other…………. When Priming Time Since Cleaning………………….. Visible Surface Rusting…..……….Yes/No Product Details Product Base Batch

No. Additive

Batch No. Overcoating

Period WFT Range

(um) DFT Range

(um) Stripe Coat Primer First Midcoat Second Midcoat Topcoat Tape Adhesive Wrapping Tape FINAL TESTING AND REPAIR (Circle as necessary) Thickness/Appearance DFT - Accept/Reject Appearance - Accept/Reject Holiday Detection Test LV/HV Tester ………… Test Voltage…………….. Pass/Fail Coating Adhesion Test Adhesion Tester……… Pull Off Stress…………… Accept/Reject Repaired Areas % of Total Area……….. Primary Locations………. Rejected Because………. GENERAL COMMENTS: SUB-CONTRACTOR CONTRACTOR Q.P. / T.P.I. Signature Name Position Date



TABLE 5. TYPICAL PAINTING AND WRAPPING CLOSE OUT INSPECTION REPORT (SUB) CONTRACTOR COATING SCHEDULE WORK LOCATION DOCUMENT REF.NO. PROJECT TITLE EQUIPMENT CONTRACT NO. CLOSE OUT DATE

ITEM COATED SURFACE PREPARATION Abrasive Brand / Size Other Cleaning Cleaning Standard Profile Height Date PAINTING First Coat Product DFT Date Second Coat Product DFT Date Third Coat Product DFT Date Fourth Coat Product DFT Date WRAPPING Adhesive Product DFT Date Wrapping Tape Date TESTING AND REPAIRS Holiday Test Voltage Adhesion Test Repaired Areas (%) GENERAL COMMENTS SUB-CONTRACTOR CONTRACTOR Q.P. / T.P.I. Signature Name Position Date



TABLE 6. COLOUR CODING SCHEME FOR EQUIPMENT

ITEM COLOUR BS 4800 REF.

NO Structural steelwork, gates, fences & pipe supports Light grey or white* 10-A-03 or 00-E-55 Marine platforms from lower deck to 15 feet below M.S.L. Black 00-E-53 Painted platform floors & decks (steel & exposed concrete)* Light grey 10-A-03 Helidecks** Dark grey 18-B-25 Helideck guards & markings Light grey 10-A-03 Platform accommodation, living spaces, stores & workrooms Light grey 10-A-03 Stairways & walkways forming escape routes Yellow 10-E-53 Other stairways & walkways Light grey 10-A-03 Galvanised vertical ladders & handrails Yellow 10-E-53 Overhead obstructions & travelling cranes Yellow with black stripes 08-E-51 & 00-E-53 Storage tanks, pressure vessels, towers & exchangers, including skirts & saddles*** Light grey or white* 10-A-03 or 00-E-55 Pipework, process valves & fittings Service related (Table 7) Pumps, compressors, generators & drivers Light grey or white* 10-A-03 or 00-E-55 Electrical & mechanical equipment & instrumentation, including control panels & supports Light grey or manf. finish 10-A-03 Insulation when not clad with aluminium or st. steel sheet Light grey 10-A-03 Safety valves (SRV, PRV & TRV) & overpres. protn. devices Peacock blue 20-D-45 Dangerous exposed machinery & electrical installations Signal red 04-E-53 Fire fighting installations & equipment Signal red 04-E-53 First aid equipment Grass green 14-C-39 Hazards & fire & safety systems & signs Type related (Table 8) Industrial gas cylinders Product related (Table 9) NOTES: 1. * The same colour shall used for all the components within a particular plant or facility. 2. ** Components to be finished with a non-skid topcoat. 3. *** Colour coding in the form of banding per BS 1710 may be used on the exterior surface of some tanks and vessels for content identification purposes. Where used, the identification colours will be the same as those used for pipeline identification (see Table 7).The Corporation's Engineer should be consulted to establish whether such content colour identification is required for particular tanks and vessels.



TABLE 7. COLOUR CODING SCHEME FOR PIPEWORK, VALVES AND FITTINGS

IMPORTANCE OF PIPE DIAMETER ON COLOUR CODING REQUIREMENTS 1. PIPEWORK SYSTEMS BELOW 2" NPS DIAMETER (plus firewater pipework of all sizes). The topcoat paint over the whole external surface shall be in the colour specified in this Table. 2. PIPEWORK SYSTEMS 2" NPS DIAMETER AND LARGER IN SIZE. The topcoat paint on the external surface shall generally be light grey to BS 4800 code reference number 10-A-03 or white to code reference number 00-E-55 but line identification shall generally be in the form of bands in the colours specified in this Table applied in accordance with B.S. 1710 requirements.

SERVICE COLOUR BS 4800 REF.NO.

Gas Pale green 14-C-35 NGL condensate & diesel Teak 04-B-25 Crude oil Golden brown 08-C-37 Process gas Ochre 08-C-35 Lube oil Pink 02-C-33 Seal oil Lilac 04-B-17 Lean glycol Emerald green 14-E-53 Rich glycol Yellow 08-E-51 Chemical injection Violet 22-C-37 Vents, drains & flare piping Black 00-E-53 Inert gas Dark brown 06-C-39 Compressed air Peacock blue 20-D-45 Steam Crimson 04-D-45 Seawater Grass green 14-C-39 Firewater & fire fighting systems Signal red 04-E-53 Brackish water Azure blue & green stripes 18-D-43 & 12-D-45 Potable water Light blue 18-E-53 Hot water Grass green 14-C-39 Chilled water Azure blue & light grey stripes 18-D-43 & 10-A-03 Central heating Grass green 14-C-39 Refrigeration systems Light grey 10-A-03



TABLE 8. COLOUR CODING SCHEME FOR HAZARDS AND FIRE / SAFETY SIGNS

HAZARD OR SIGN COLOUR BS 4800 REF. NO. Safety Grass green 14-C-39 Attention Golden yellow 08-E-51 Danger Signal red 04-E-53 Mandatory Light blue 18-E-53 Alert Yellow 10-E-53 Traffic lines White 00-E-55 NOTE: All hazards and fire and safety signs shall have a gloss finish.

TABLE 9. COLOUR CODING SCHEME FOR INDUSTRIAL GAS CYLINDERS NAME / FORMULA OF GAS BASE COLOUR BAND COLOUR COLOUR BS 4800 REF. COLOUR BS 4800 REF. Acetylene (C2H2) Maroon RAL 3009* None N/A Air (no formula) Light grey 10-A-03 None N/A Ammonia (NH3) Black 00-E-53 Signal red 04-E-53 Golden yellow 08-E-51 Argon (Ar) Peacock blue 20-D-45 None N/A Carbon dioxide (CO2) Black, alumin. 00-E-53 White 00-E-55 or white 00-E-55 None N/A Carbon monoxide (CO) Signal red 04-E-53 Golden yellow 08-E-51 Chlorine (Cl2) Golden yellow 08-E-51 None N/A Coal gas (C2H2CH4) Signal red 04-E-53 Orange RAL 2002* Ethyl chloride (C2H3Cl) Grey 10-A-30 Signal red 04-E-53 Ethylene (C2H4) Dark violet 22-C-37 Signal red 04-E-53 Helium (He2) Mid brown 08-C-37 None N/A Hydrogen (H2) Signal red 04-E-53 None N/A Nitrogen (N2) Light grey 10-A-03 Black 00-E-53 Oxygen (O2) Black 00-E-53 None N/A Phosgene (COCl2) Black 00-E-53 Peacock blue 20-D-45 Golden yellow 08-E-51 Propane (Commercial) (C3H8) Signal red 04-E-53 Mid brown 08-C-37 Sulphur dioxide (SO2) Pale green 14-C-35 Golden yellow 08-E-51 NOTES: 1. * Colour coding to B.S. 381C. 2. All gas cylinders shall have a gloss finish.



TABLE 10. RESPIRATORY PERSONNEL PROTECTIVE EQUIPMENT

EQUIPMENT OPERATION OR HAZARD

BLAST CLEANING

PAINT SPRAYING

TOXIC DUST

NONTOXIC DUST

CONFINED SPACES

Air-fed blasting helmet*/** X Air-fed hood* X X Breathing apparatus X X Air-fed mask(pos pres)* X X X Air line (constant flow)* X Lt./wt. dust respirator X Twin filter respirator X X Lt./wt. disposable mask X

NOTES: 1. * Air to be supplied from a remote compressor. 2. ** Blasting helmets shall be certified as meeting the requirements of BS EN 271 and CE marked

TABLE 11. EYE AND FACE PERSONAL PROTECTIVE EQUIPMENT


BLAST CLEANING

WATER JETTING GRINDING

METAL SPRAYING

NONTOXIC DUST

Air-fed blasting helmet*/** X X Fibre glass hood X X X Full view safety goggles X X Swing-back face shield X X X Clip-on face shield X X X

NOTES: 1. * Air to be supplied from a remote compressor. 2. ** Blasting helmets shall be certified as meeting the requirements of BS EN 271 and CE marked 3. Sweat bands shall be worn inside vessels after blast cleaning, to minimize sweat contamination

of the blast cleaned surfaces prior to and during paint application.

TABLE 12. FOOT AND BODY PERSONAL PROTECTIVE EQUIPMENT


BLAST CLEANING

WATER JETTING GRINDING

HANDLING TINS/BAGS

PAINT SPRAYING

Coveralls X X X X X Leather apron X Cloth gloves X Rubber gauntlets X Chrm. leather gauntlets X X X Rubber thigh boots X Rubber ankle boots X Leather boots X X X

NOTES: 1. Rubber ankle boots shall be worn on slippery surfaces, irrespective of the work carried out. 2. Elasticated soft disposable overshoes shall be worn for vessel entry after the internal vessel

surfaces have been blast cleaned.



19.2 APPENDIX B. FIGURES

FIGURE 1. ZONES OF OFFSHORE STRUCTURES FOR CORROSION PROTECTION



19.3 APPENDIX C. MINIMUM FORCED VENTILATION REQUIREMENTS FOR ENCLOSED SPACES DURING PAINT APPLICATION AND CURING

This requirement shall be applicable to all enclosed spaces, including tanks and vessels, during paint application and throughout the coating curing period. To avoid fires and explosions, the flammable vapour concentration must be maintained below the lower explosive limit (L.E.L.). As a guide, the required level of ventilation can be calculated using the following formula.

N = Q X 125

V where N = Number of air renewals per hour Q = Quantity (average) of paint applied in litres per hour V = Volume of enclosed space in cubic metres EXAMPLE A 1000 cubic metre capacity tank is being lined with a paint that is being applied at an

average rate of 1.5 litres per minute. N = 1.5 (litres) x 60 (minutes) x 125 1000 (cubic metres) = 11.25 The minimum level of air ventilation should therefore be 11.25 air changes per hour. NOTES:

1. The ventilation requirements and efficiency are affected by such variables as the types of fans and/or eductors used and the presence of dead spaces. It is therefore often advisable to request that an explosivity meter test is carried out.

2. Even when ventilation meeting the above requirements is provided, it is still possible

for a fire or explosion to occur if the air flow to the actual paint spraying areas is insufficient. It is therefore advisable to eliminate all possible sources of ignition in addition to providing the required level of forced ventilation.



REVISION HISTORY LOG

Revision Number: ……1 Date: ……October 2001 Item Revised:

Reason for Change/Amendment: New Standard Format

1.0–3.0 FOREWORD, OBJECTIVE, SCOPE & APPLICATION

Changes/Amendments Made: OBJECTIVE and APPLICATION Sections added and FOREWORD and SCOPE sections modified to meet new Corporate Standard format

Item Revised

Reason for Change/Amendment: Clarifications

4.0 TERMINOLOGY

Changes/ Amendments Made: A new Sub- section on Abbreviations added, a number of Definitions modified and others added

Item Revised

Reason for Change/Amendment: Updates & Additions

5.0 RELATED DOCUMENTS

Changes/ Amendments Made: New documents added and superceded and withdrawn documents deleted

Item Revised


6.0 & 7.0 CONTRACTOR & H., S. & E. REQUIREMENT

Changes/ Amendments Made: Original Sections 6.0–8.0 & 10.0 completely reorganised into new Sections 6.0 & 7.0 with expansions for improved clarity

Item Revised

Reason for Change/Amendment: Additions & Clarifications

8.0 & 9.0 NEW/ MAINTENANCE PAINTING

Changes/ Amendments Made: New Sections on Painting of New Equipment/Structures and Maintenance Painting of Existing Equipment/Structure added

Item Revised



Changes/ Amendments Made: Original Sections 12.0 & 13.0 combined and expanded



Item Revised

Reason for Change/Amendment: Additions

11.0 PAINT APPLICATION

Changes/ Amendments Made: New Section on Paint Application added

Item Revised

Reason for Change/Amendment: Clarifications & Additions

12.0 TAPE APPLICATION

Changes/ Amendments Made: Original Section 14.0 modified and expanded

Item Revised

Reason for Change/Amendment: Clarifications & Additions

13.0 INSPECTION

Changes/ Amendments Made: Original Section 11.0 modified and expanded

Item Revised

Reason for Change/Amendment: Corporate Quality System

14.0 QUALITY REQUIREMENT

Changes/ Amendments Made: New Section on Quality Assurance Requirements added

Item Revised


15.0 DOCUMENT’T’N

Changes/ Amendments Made: New Section added to meet new Corporate Standard format

Item Revised


16.0 SCHEDULE CLASSIFICAT’N

Changes/ Amendments Made: Classification Table for Protective Systems modified

Item Revised

Reason for Change/Amendment: Updates & Clarifications

17.0 SCHEDULES

Changes/ Amendments Made: New explanatory Cover Sheet added, number of Coating Schedules increased and most Schedules changed to reflect latest coating & wrapping developments, current industry practices and new area classifications



Item Revised


18.0 COLOUR CODING

Changes/ Amendments Made: Cover Sheet modified and Tables moved to Appendix A

Item Revised


APPENDIX A. TABLES

Changes/ Amendments Made: New explanatory Cover Sheet and new Tables on Paint Rusting and Surface Preparation Standards, Quality Inspection and Test Plan, Daily and Close Out Inspection Reports added and original Tables on Colour Coding and Personal Protective Equipment modified

Item Revised

Reason for Change/Amendment: Additions

APPENDIX B. FIGURES

Changes/ Amendments Made: New Figure added to illustrate Protective Zones for Offshore Structures

Item Revised


OLD APPENDIX A

Changes/ Amendments Made: Renumbered as Appendix C

Item Revised

Reason for Change/Amendment: Product Approval Confusion

OLD APPENDIX B. COATING PRODUCTS

Changes/ Amendments Made: Original Table on Participating Paint Manufacturer Coating Systems omitted

QP SPC L 002 REV 1

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