How to a Use Process Hazard Analysis (PHA) to Reduce ... · Clean air solutions How to a Use...

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Clean air solutions How to a Use Process Hazard Analysis (PHA) to Reduce Combustible Dust Explosion Risk Sponsored by Presenters: David Steil: Pharmaceutical Market Manager at Camfil APC & Adam Kane: Pharmaceutical OEM sales at Camfil APC

Transcript of How to a Use Process Hazard Analysis (PHA) to Reduce ... · Clean air solutions How to a Use...

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How to a Use Process Hazard Analysis (PHA) to Reduce Combustible Dust Explosion Risk

Sponsored by

Presenters:David Steil: Pharmaceutical Market Manager at Camfil APC& Adam Kane: Pharmaceutical OEM sales at Camfil APC

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Focus of This Presentation2

• Requirements of PHAs in NFPA 654• Definition• Methodologies• How to conduct, document and follow up on a Process Hazard Analysis (PHA)

1. Is the dust combustible2. How much dust presents a hazard3. Risk Evaluation Method4. Processes that use/consume/produce combustible dust5. Areas where combustible dust can accumulate6. Hidden areas where combustible dust can accumulate7. Means by which combustible dust may disperse8. Ignition Sources

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Process Hazard Analysis3

Why have a PHA?

OSHA requires all employers to adequately perform a

hazard analysis as defined in NFPA 654

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Process Hazard Analysis4

Section 4.0 NFPA 654• Required for all processes that have a fire hazard.• Documentation must be kept for the life of the process• If process involves combustible dust then you must document:

• Allowable dust layer thickness• Maximum allowed surface area • Minimum PPE

• Update every 5 years

OSHA is taking this document very seriously!

Notice the forceful language

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Process Hazard Analysis5

NFPA 6544.2.1* The design of the fire and explosion safety provisionsshall be based on a process hazard analysis of the facility, theprocess, and the associated fire or explosion hazards.

3.2.5 Shall. Indicates a mandatory requirement.

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Process Hazard Analysis6

What is a PHA?

A PHA is defined as:A systematic effort designed to identify and analyze hazards associated with the processing or handling of highly hazardous materials; andA method to provide information which will help workers and employers in making decisions that will improve safety.

Source: Preventing Chemical Accidents – Introduction to Process Hazard Analysis (NJ Work Environment Council) https://www.osha.gov/dte/grant_materials/fy08/sh-17813-08/2_process_hazard_analysis.doc

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Process Hazard Analysis7

CAMFIL APC’s OFFICIAL POSITION ON PROCESS HAZARD ANALYSIS

If a customer does not want to follow the Process Hazard Analysis and Risk Assessment requirements of NFPA then we will adhere strictly to the prescribed controls in the standards.

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Hazard Analysis Methodologieshttps://www.osha.gov/SLTC/etools/safetyhealth/mod4_tools_methodologies.html

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WHAT - IF Checklist: The what - if checklist is a broadly-based hazard assessment technique that combines the creative thinking of a selected team of specialists with the methodical focus of a prepared checklist.Hazard and Operability Study (HAZOP): HAZOP is a formally structured method of systematically investigating each element of a system for all of the ways in which important parameters can deviate from the intended design conditions to create hazards and operability problems.Failure Mode and Effect Analysis (FMEA): The failure mode and effect analysis is a methodical study of component failures. This review starts with a diagram of the process that includes all components which could fail and conceivably affect the safety of the process.Fault Tree Analysis: A fault tree analysis is a quantitative assessment of all of the undesirable outcomes, such as a toxic gas release or explosion, which could result from a specific initiating event. It begins with a graphic representation (using logic symbols) of all possible sequences of events that could result in an incident. The resulting diagram looks like a tree with many branches — each branch listing the sequential events (failures) for different independent paths to the top event.

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OSHA Citation9

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Process Hazard Analysis12

Organic Dust Fire and Explosion 2003: North Carolina (6 killed, 38 injured)Citations:

Hazard assessment;Hazard communication; andEngineering management.

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Process Hazard Analysis13

Organic Dust Fire and Explosion 2003: Kentucky (7 killed, 37 injured)Citations:CTA ACCOUSTICSCitations:Hazard assessment;Hazard communication;Maintenance procedures;Building design; and,Investigation of previous fires.

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Process Hazard Analysis14

Organic Dust Fire and Explosion 1999: Massachusetts (3 killed, 9 injured):

Citations:Housekeeping to control dust accumulations;Ventilation system design; Maintenance of ovens; and,Equipment safety devices.

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Combustible Dust Citations15

March 13, 2013US Labor Department's OSHA cites New England Wood Pellet LLC for fire and combustible dust hazards at 2 New York manufacturing plants - $47,710

Aug 7, 2011US Department of Labor's OSHA cites Alabama manufacturer for combustible dust and other hazards; proposes nearly $55,000 in fines

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Process Hazard Analysis16

Hazard Assessment: Facility Analysis Components:

•Materials that can be combustible when finely divided

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Process Hazard Analysis17

Materials that can be combustible when finely divided

CosmeticsCoal Dyes Grain Dry foods Metal

Pharmaceuticals Plastic and rubber Printer toner Soaps Textiles Wood and paper

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Process Hazard Analysis18

How Much Dust Presents a Hazard

6.1.1.3* Dust flash fire or dust explosion hazard areas shall additionally be determined in accordance with any one of the following four methods:(1) Layer depth criterion method in 6.1.3(2) Mass method A in 6.1.4(3) Mass method B in 6.1.5(4) Risk evaluation method in 6.1.6

6.1.1.4 Each of the methods in 6.1.3, 6.1.4, 6.1.5, and 6.1.6shall be deemed to provide equivalent levels of safety.

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Process Hazard Analysis19

(1) Layer depth criterion method in 6.1.3

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Process Hazard Analysis20

(1) Layer depth criterion method in 6.1.3

6.1.3.2* A dust explosion hazard and dust flash fire hazard shall be deemed to exist in any building or room where any of the following conditions exists:(1) The total area of non-separated dust accumulations exceeding the layer depth criterion is greater than 5 percent of the footprint area

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Process Hazard Analysis21

6.1.3.1 -5 Percent limit

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Is This A Hazard Area?22

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Process Hazard Analysis23

(1) Layer depth criterion method in 6.1.3

6.1.3.2* A dust explosion hazard and dust flash fire hazard shall be deemed to exist in any building or room where any of the following conditions exists:(1) The total area of non-separated dust accumulations exceeding the layer depth criterion is greater than 5 percent of the footprint area (2) The area of any single non-separated dust accumulation exceeding the layer depth criterion is greater than 1000 ft2 (92.9 m2)

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Process Hazard Analysis24

(1) Layer depth criterion method in 6.1.3

(2) The area of any single non-separated dust accumulation exceeding the layer depth criterion is greater than 1000 ft2 (92.9 m2)

A space 25 ft x 40 ft covered with dust in any plant regardless of size of the factory is a hazard.

Note: this is about the size of most home shops!

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Process Hazard Analysis25

(1) Layer depth criterion method in 6.1.3

6.1.3.2* A dust explosion hazard and dust flash fire hazard shall be deemed to exist in any building or room where any of the following conditions exists:(1) The total area of non-separated dust accumulations exceeding the layer depth criterion is greater than 5 percent of the footprint area (2) The area of any single non-separated dust accumulation exceeding the layer depth criterion is greater than 1000 ft2 (92.9 m2)(3) The total volume of non-separated dust accumulations is greater than the layer depth criterion multiplied by 5 percent of the footprint area

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Process Hazard Analysis26

(1) Layer depth criterion method in 6.1.3

(3) The total volume of non-separated dust accumulations is greater than the layer depth criterion multiplied by 5 percent of the footprint areaTotal volume = depth x area

For the 10,000 sf plant:1/32 in x 500 sf/12 = 1.3 cubic ft (13” cubic box, 10 gal)

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Process Hazard Analysis27

(1) Layer depth criterion method in 6.1.3

6.1.3.2* A dust explosion hazard and dust flash fire hazard shall be deemed to exist in any building or room where any of the following conditions exists:(1) The total area of non-separated dust accumulations exceeding the layer depth criterion is greater than 5 percent of the footprint area (2) The area of any single non-separated dust accumulation exceeding the layer depth criterion is greater than 1000 ft2 (92.9 m2)(3) The total volume of non-separated dust accumulations is greater than the layer depth criterion multiplied by 5 percent of the footprint area(4) The total volume of any single non-separated dust accumulation is greater than the layer depth criterion multiplied by 1000 ft2 (92.9 m2)

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Process Hazard Analysis28

(1) Layer depth criterion method in 6.1.3

(4) The total volume of any single non-separated dust accumulation is greater than the layer depth criterion multiplied by 1000 ft2 (92.9 m2)

This equates too 2.6 cubic feet or 20 gallons

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Process Hazard Analysis29

6.1.3.2 – 1000 sq ft limit

If the plant foot print is greater than 20,000 sf then the dust accumulation is limited to 1000 sf (32 ft x 32 ft)

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Process Hazard Analysis30

(2) Mass method A in 6.1.4

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Process Hazard Analysis31

(2) Mass method A in 6.1.4

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Process Hazard Analysis32

(2) Mass method A in 6.1.4

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Process Hazard Analysis33

(2) Mass method A in 6.1.4

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Process Hazard Analysis34

(3) Mass method B in 6.1.5

We are not going here

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Process Hazard Analysis35

(4) Risk evaluation method in 6.1.6

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Process Hazard Analysis36

Hazard Assessment: Facility Analysis Components:•Materials that can be combustible when finely divided

•Processes which use, consume, or produce combustible dusts

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Process Hazard Analysis37

Processes which use combustible dusts

•Powder metal part mfg•Pharmaceutical presses•Food Processing•Chemical mfg•Energy production•Plastics mfg•Refining•Pressed wood products

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Process Hazard Analysis38

Processes which consume combustible dusts

•Energy production•Chemical reactions

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Process Hazard Analysis39

Processes which produce combustible dusts

•Grinding/milling•Conveying•Machining•Casting•Shaping/cutting•Mining•Mixing

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Process Hazard Analysis40

Hazard Assessment: Facility Analysis Components:•Materials that can be combustible when finely divided

•Processes which use, consume, or produce combustible dusts

•Open areas where combustible dusts may build up

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Process Hazard Analysis41

Open areas where combustible dusts may build up:

Floors

Imperial Sugar

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Process Hazard Analysis42

Open areas where combustible dusts may build up:

Electrical components

Imperial Sugar

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Process Hazard Analysis43

Open areas where combustible dusts may build up:

Elevated surfaces and ledges

Imperial Sugar

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Process Hazard Analysis44

Open areas where combustible dusts may build up:

Mechanical equipment and walls

Imperial Sugar

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Process Hazard Analysis45

Open areas where combustible dusts may build up:

Mechanical equipment and walls

Imperial Sugar

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Process Hazard Analysis46

Hazard Assessment: Facility Analysis Components:•Materials that can be combustible when finely divided

•Processes which use, consume, or produce combustible dusts

•Open areas where combustible dusts may build up

•Hidden areas where combustible dusts may accumulate

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Process Hazard Analysis47

Hidden areas where combustible dusts may accumulate•Drop ceilings•Bucket Elevators•Machinery•Ducting•Elevated surfaces•Under equipment•Between equipment and walls•Any place out of site

West Pharmaceuticals

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Process Hazard Analysis48

Hazard Assessment: Facility Analysis Components:•Materials that can be combustible when finely divided

•Processes which use, consume, or produce combustible dusts

•Open areas where combustible dusts may build up

•Hidden areas where combustible dusts may accumulate

•Means by which dust may be dispersed in the air

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Process Hazard Analysis49

Means by which dust may be dispersed in the air•Primary dust explosion•Cleaning with brooms or compressed air•Fans•Wind•Spills•Equipment malfunction

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Process Hazard Analysis50

Hazard Assessment: Facility Analysis Components:•Materials that can be combustible when finely divided

•Processes which use, consume, or produce combustible dusts

•Open areas where combustible dusts may build up

•Hidden areas where combustible dusts may accumulate

•Means by which dust may be dispersed in the air

•Potential ignition sources

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Process Hazard Analysis51

Potential ignition sources

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Process Hazard Analysis52

Examples of Ignitions Sources

Sparks

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Process Hazard Analysis53

Examples of Ignitions Sources

Sparks

Hot work

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Process Hazard Analysis54

Examples of Ignitions Sources

Sparks

Hot work

Bearings

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Process Hazard Analysis55

Examples of Ignitions Sources

Sparks

Hot work

BearingsMachinery

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Process Hazard Analysis56

Examples of Ignitions Sources

Sparks

Hot work

BearingsMachinery

Electrical

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Process Hazard Analysis57

Examples of Ignitions Sources

Sparks

Hot work

BearingsMachinery

Electrical

Open Flame

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Process Hazard Analysis58

Examples of Ignitions Sources

Sparks

Hot work

BearingsMachinery

Electrical

Open Flame

Hot Babes

Static Discharge

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Process Hazard Analysis59

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What Did We Learn?60

OSHA enforces combustible dust hazards through the general duty clause and NFPA standards.NFPA has no powerLack of hazard analysis is a primary citation from OSHACOMPONENTS OF A HAZARD ANALYSISPresence of combustible dustProcesses that use, consume or create combustible dustOpen and hidden areas where dust can build upMeans of dispersionMeans of ignitionLayer depth criteria

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Time for a Break - Questions61

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Disclaimers *This webinar is designed to provide accurate and authoritative information about the subject matter covered. It is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other professional services. *This webinar provides general information only and does not constitute legal advice. No attorney-client relationship has been created. If legal advice or other expert assistance is required, the services of a competent professional should be sought. We recommend that you consult with qualified local counsel familiar with your specific situation before taking any action.


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