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GUIDELINE Confined Space Entry Page : 1 of 7

INDUSTRIAL HYGIENE

Document# : 12.5

Revision : 00

Date : 05-05-2010

Page : 1 of 7

GUIDELINE Confined Space Entry

Ditetapkan :

dr. Thomas Tabalujan, MScDirektur Utama

Definition of

Confined

Space

A confined space is defined as an areathat meets the following three (3) requirements: Is not designed for continuous occupancy.

Large enough and configured so that a persons head can enter the space.

Has limited or restricted entry or exit.

Definition ofEntry

ntryoccurs when the breathing zone of the worker is inside or immediately adjacento the confined space opening. The entire body does not have to be inside the spacefor it to be considered entry.

Note: Openings in vessels and equipment too small for entry are not confined spaces, but care stillmust be taken to protect the worker from hazardous atmospheres near the openings.

Confined

Space

Examples

ach work site must identify the types of confined spaces present at that location.

Where practical, it is recommended that caution signs be posted at the entrance to the

onfined spaces to remind workers of the potential hazards and possible precautions

associated with work in the space. The following are examples of confined spaces:

Diked area (dike over 4 feet [1.2 meters] high)*

Engine crankcase Excavations*

Heater treaters

Piping raceways

Processing vessels, including separators

Skirted areas under vessels

Steam generators or boilers

Storage tanks

Sumps

Transformers

Tanks Vaults

Vessel compartments (boats and barges)

Wellhead cellars

_______________________

*These examples may not always meet the primary definition of a confined space, but

hould normally be considered a confined space because of the potential for heavy

hydrocarbons accumulation and/ or oxygen deficiency.

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Confined Space Entry

Management

Requirements

Site management is responsible for ensuring the following precautions are in place

prior to a confined space entry:

Define the locations and/or circumstances where a Confined Space Entry Permit isrequired.

Verify personnel working in the space are properly trained for the task and workenvironment.

Test the atmosphere in the confined area for oxygen content and the presence ofhazardous chemicals. If the space cannot be properly ventilated, supplied-air

breathing apparatus must be used.

Ensure potentially hazardous materials (including toxics, flammables, wastes, andcleaning materials) are removed, as possible, prior to entry.

Ensure potentially hazardous materials, including produced dust, are properlycontrolled within the space.

Isolate sources of energy (electrical, mechanical, etc.) from the space.

Ensure workers inside the space wear appropriate PPE.

Provide a stand-by person at the entry to the confined space.

Install barriers or warning signs near the work location to restrict pedestrian trafficin the area.

Isolate process flows from the space. Piping or ducts opening into the space mustbe isolated, using blinds or blanks, or using a double block and bleed (DBB) valve

configuration where acceptable.

Provide for continuous communication and emergency notification with workersin the confined space.

Verify emergency rescue personnel are trained and capable of responding quicklyto the confined space location.

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Example Confined Space Entry Procedure

Example

Procedure,Continued

7. Obtain an approved Work Permit and safety precautions. The Standby Personmust sign the Work Permit.

8. Implement necessary safeguards (PPE, SCBA, etc.) based on the identified

hazards in the confined space.

Ensure that guards/ barricades and signs are placed near the entry point, to

restrict access of unauthorized personnel to the area.

9. While working in the confined space, test the atmosphere regularly (or

continuously) and use automatic alarms to warn of low oxygen or the presenceof flammables or toxics.

Ventilation, if required, must be maintained and monitored.

10. A Standby Person must be present while persons are inside the confined space.This person monitors the potential hazards associated with multiple tasks being

performed in the confined space, and the potential impacts of external activitieswith the tasks inside the space.

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9.4.2 Confined Space Entry Responsibilities

Entrants Personnel working inside a confined space must understand the potential hazards

within the space and trained in the required skills of the task to be performed insidehe confined space. In addition, entrants are responsible for:

Wearing appropriate PPE and/or protective clothing. Using equipment properly and for the intended purpose.

Communicating regularly with the Standby Person.

Alerting the Standby Person if problems are encountered within the space.

Exiting the confined space if:

Ordered to do so.

The evacuation alarm sounds.

The worker feels ill or recognizes symptoms of exposure to hazardous

materials.

Prohibited conditions arise.

Entry

Supervisor

An Entry Supervisor directly oversees the confined space entry process. This person

verifies that proper precautions have been taken to ensure the safety of personnelworking in the confined space. Responsibilities include:

Review the Work Permit to verify documentation of the necessary informationand approvals.

Ensure the work site is properly prepared and the task is properly planned.

Ensure equipment is appropriate and safe for use in the task.

Verify task procedures and safeguards are available and in place.

Confirm emergency rescue personnel are trained, available, and are aware of theentry.

Conduct a pre-task safety meeting and job briefing with affected workers. Coordinate the entry with other activities including the possible restriction of

other activities during the confined space entry.

Verify energy isolation is complete and the space has been gas-freed.

Provide final authorization for an approved entry.

Periodically monitor the status of the entry.

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Confined Space Entry Responsibilities

Attendant/

Standby

Person

ach confined space entry requiring a Work Permit should also include an Attendant/

Standby Person positioned at the entrance to the confined space to oversee entry

operations. The responsibilities of this person include:

Knowing the hazards and consequences persons may face during entry including

mode, signs or symptoms of any hazardous exposure.

Determining if conditions are acceptable for entry to the confined space.

Verifying the availability of emergency or rescue services, and the means forsummoning assistance is operable.

Verifying the tests specified on the work permit have been completed prior toendorsing the permit.

Verifying the procedures and equipment, including PPE, specified on the permitare in place prior to endorsing the permit.

Overseeing confined space entry and exit, including logging personnel goingin/out of the confined space.

Ensuring the entrance is barricaded and appropriate signs are posted.

Preventing unauthorized entry.

Verifying the work in the confined space is consistent with the scope of theassociated work permit(s).

Preventing unauthorized access into the confined space.

Maintaining communications with persons inside the confined space.

Monitoring ventilation and/or other factors that could create a hazard

Closing out the work permit(s) at the conclusion of the job.

RescuePersonnel

Confined space rescue personnel must be properly qualified for performing rescues,

preferably including participation in periodic rescue drills. Rescuers should also be

ompetent in applying cardiopulmonary resuscitation (CPR) and basic first aidechniques.

If trained as a rescuer, the Attendant/ Standby Person may enter a confined space torescue a worker. However, the standby person should not enter the confined space

until another qualified standby person with suitable PPE and/or respiratory equipment

is stationed at the entrance to the space.