Books : Permit-Required Confined Space (PRCS) : Section V: Appendices

SECTION V: Appendices

APPENDIX A - CONFINED SPACE AND PERMIT-REQUIRED CONFINED SPACE RECOGNITION FORM

Part I Yes/No
1 Is the space large enough so an employee can bodily enter and perform work?
2 Does the space have limited or restricted means for entry and exit?
3 Is the space designed for occupancy?

Note to the Employer: Refer to Section II for additional clarification and assistance. If the answers to items 1 and 2 are yes and item 3 is no, then the space is not considered a confined space and no further action is needed. If the answers to items 1,2 and 3 are yes, then you have identified the space as a confined space. Continue to Part II if a confined space has been identified to determine if it is a permit-required confined space.

Part II Yes/No
1 Does the space contain or potentially contain a hazardous atmosphere?
2 Does the space contain any chemicals or chemical residues?
3 Does the space contain any flammable/combustible substances?
4 Does the space contain or potentially contain any decomposing organic matter?
5 Does the space have any pipes which bring chemicals into it?
6 Does the space have any materials that can trap or potentially trap, engulf or drown an entrant?
7 Is vision obscured by dust at 5 feet or less?
8 Does the space contain any mechanical equipment?
9 Does the space have converging walls, sloped floors or tapered floor to smaller cross-sections which could trap or asphyxiate an entrant?
10 Does the tank or vessel contain a rusted interior?
11 Does the space contain thermal hazards (e.g., extreme hot or cold)?
12 Does the space contain excessive noise levels which could interfere with communication with an attendant?
13 Does the space present any slip, trip or fall hazards?
14 Are there any hazards from falling objects?

APPENDIX A - CONFINED SPACE AND PERMIT-REQUIRED CONFINED SPACE RECOGNITION FORM

Part II Yes/No
15 Are there any operations conducted near the space opening which could present a hazardto entrants?
16 Are there lines under pressure servicing the space?
17 Are cleaning solvents or paints going to be used in the space?
18 Is welding, cutting, brazing, riveting, scraping or sanding going to be performed in the space?
19 Is electrical equipment located in or required to be used in the space?
20 Does the space have poor natural ventilation which would allow an atmospheric hazard to develop?
21 Are there any conditions which could prevent any entrant's self rescue from the space?
22 Are there any corrosives which could irritate the eyes in the space?
23 Are there any substances used in the space which have acute hazards?
24 Is mechanical ventilation needed to maintain a safe environment?
25 Is air monitoring necessary to ensure the space is safe for entry due to a potential hazardous atmosphere?
26 Will entry be made into a diked area where the dike is 5 feet or more in height?
27 Are residues going to be scraped off the interior surfaces of the vessel?
28 Are non-sparking tools required to remove residues?
29 Does the space restrict mobility to the extent that it could trap an entrant?
30 Is respiratory protection required because of a hazardous atmosphere?
31 Does the space present a hazard other than those noted above which would make it a permit space?

Note to the Employer: If any of the questions in Part II have been checked Ayes@, the confined space is a permit-required confined space. As such, entry into these spaces must be performed under the protection of a full permit-required confined space program. Note that in some situations, alternative procedures or reclassifying to a non-permit space may be possible in lieu of a full permit-required confined space program.

APPENDIX B - ALTERNATIVE PROCEDURE WORK SHEET

Note to the Employer: This worksheet is intended to provide written certification that the permit space qualifies for alternative procedures and verifies that the space is safe for entry. This checklist should be augmented with any relevant information for this certification process.

1)

a) Permit Space Location

b) What is the size (volume) and configuration of the space?

2)

a) Have employees received permit space training?

b) Has the certifier received permit space training?

Y N

Y N

3)

a) What tasks are to be performed during the entry operation?

b) Is a hazardous atmosphere the only hazard of concern? If no, alternative procedures cannot be used.

Y N

4)

Does the atmospheric hazard in the space have the potential to create high temperatures or high pressures? If yes, take appropriate action before removing cover.

Y N
5) Are conditions safe to remove cover? If no, cover removal is prohibited. Y N
6) After cover removal, is opening properly guarded?
List guarding methods:

Y N

7)

a) Continuous forced air ventilation provided?
If no, explain why :
If yes, explain capacity (CFM) air exchange rate.

b) Minimum ventilation duration prior to allowing entry

Note: Refer to Section III for information on ventilation systems and appropriate calculations. Conduct pre-entry atmospheric testing and continue to ventilate the space during the entire entry operation.

Y N



8)

Is atmospheric testing equipment calibrated?

Date of calibration:

Y N

APPENDIX B - ALTERNATIVE PROCEDURE WORKSHEET

9) Atmospheric Testing Record:

Substance

Acceptable Level

Readings

Oxygen

19.5% - 23.5%

Explosive (Gas/Vapor)

<10% LFL

Explosive Dust

<LFL (5 ft. Visibility)

Carbon Monoxide

50 PPM

Hydrogen Sulfide

10 PPM

10) Does inspection of interior have to be conducted to see if other hazards exist?
If yes, full entry program is required.
Y N
11)

a) Is frequent or periodic testing performed? If no, explain why

b) Who is to perform frequent or periodic monitoring?

Y N


12)

a) If a hazardous atmosphere is detected during entry, have employees been instructed to evacuate immediately?

b) Is there a procedure to reevaluate the space if a hazardous atmosphere does develop?
Describe Procedure:

c) Have steps been taken to prevent employees from re-entering the space until it is proven to be safe?
List steps :

Y N

Y N

Y N

13) Have employees had the opportunity to review the data to support use of alternative procedures? Y N

Signature of Certifying Head Date

APPENDIX C - RECLASSIFYING PERMIT SPACE WORK SHEET

1) Permit Space Location
2) Have employees received permit space training? Y N
3)

A. Are any hazardous atmospheres present or potentially present?

B. Is continuous forced air ventilation needed to maintain acceptable levels?

C. Is air monitoring required? If yes, record test results.

Y N

Y N

Y N

ATMOSPHERIC TESTING RECORD

Substance

Acceptable Level

Readings

Oxygen

19.5% - 23.5%

Explosive (Gas/Vapor)

<10% LFL

Explosive Dust

<LFL (5 ft. Visibility)

Carbon Monoxide

50 PPM

Hydrogen Sulfide

10 PPM

D.

Is atmospheric testing equipment calibrated?

Date of calibration :

Y N

Note to the Employer #1: If hazardous atmospheres are present or ventilation is needed to control levels, then reclassifying the space is not possible. It is necessary to eliminate the atmospheric hazard to reclassify (see Note to the Employer #2).

4)

Is an engulfment hazard present?

If yes, what control measure is used to eliminate the engulfment hazard?

Y N
5)

Is there an entrapment hazard?

If yes, then list the steps to be taken to eliminate the hazard.

Y N

APPENDIX C - RECLASSIFYING PERMIT SPACE WORK SHEET

6)

Have all hazardous energy sources (including chemical and physical hazards) been eliminated? Y N

Check isolating methods used to eliminate the hazard(s).

deenergize equipment

locking out electrical circuits and related training provided

tagging out electrical circuits and related training provided

physically block machinery so it can not move

blank or blinds

double block and bleed

locking and/or tagging valves

disconnecting lines

other procedures, be specific:

Note to the Employer: The above listed isolation techniques are generally used in combination to ensure elimination of the hazard(s).

Is it necessary to enter the permit space to determine if the hazard has been eliminated?

If yes, then the entry must be performed in accordance with a full PRCS program, paragraphs (d) through (k).

Y N

Note to the Employer #2: Permit spaces that contain or have the potential to contain hazardous atmospheres may also be reclassified as non-permit spaces if the source of the hazardous atmosphere can be eliminated during the entire entry operation. After the space is isolated, purged and ventilated from outside, it must be entered to test the atmosphere and inspect conditions within the space in order to ensure that the hazards have been eliminated. This entry must be conducted in accordance with the full permit space program requirements given in paragraphs (d) through (k). Once again, control of a hazardous atmosphere is not the same as its elimination. This reclassification would also be valid only as long as the hazards remain eliminated.

7) Have all employees who will enter the declassified space been instructed to immediately evacuate the space if a hazard is detected?

If no, instruct employees of this safety precaution measure.


Y N
8)

Has a procedure been instituted to re-evaluate the space and reclassify it back to a permit space if the need arises?

If no, then institute steps to properly re-evaluate the space, prohibit entry and if necessary reclassify it back to a permit space.

If yes, describe procedure:

Y N

 

APPENDIX C - RECLASSIFYING PERMIT SPACE WORK SHEET

9) Have all employees participating in the entry operation had and opportunity to review this safe entry certification form? Y N

Signature of Certifying Head Date

APPENDIX D - PERMIT-REQUIRED CONFINED SPACE (PRCS) PROGRAM WORK SHEET

Permit Space Location:

Hazards Acceptable Entry Conditions

Equipment

Required

Yes/No

Type

Air testing monitor

Forced air ventilation

Communication

Personal Protective Equipment

Lighting

Barriers

Entry/Egress

Rescue Equipment

Respirator

Other Equipment

Methods to prevent Unauthorized Entry:
Specific Space Entry Procedures:

APPENDIX D - PERMIT-REQUIRED CONFINED SPACE (PRCS) PROGRAM WORK SHEET

Designated Required Personnel:
Authorized
Entrant's Name(s):
Duties:
Attendant's
Name(s):
Duties:
Is one attendant monitoring multi-spaces at the same time? Y N
If yes, 1) list method(s) to monitor multi-spaces:
2) Provide procedure(s) to respond to an emergency and still be able to ensure the safety of the other spaces:
Entry Supervisor's
Name:

Duties:

Air Monitor's Name:
Duties:

APPENDIX D - PERMIT-REQUIRED CONFINED SPACE (PRCS) PROGRAM WORK SHEET

Entry Permit: (company representative's name) will provide entry permits for PRCS operations. All entry permits will be completed by the entry supervisor authorizing entry. Upon cancellation of the entry permit by the entry supervisor, the entry permit will be returned.

Procedures for Summoning Rescue and Emergency Services:

Multi-Employer Permit Space Operation? Y N

If yes, develop procedures to coordinate entry operations.


List measures taken to close entry portal and return the space to normal operating conditions.

(Company Representative's Name) will review entry operations if measures taken did not fully protect employees [see 1910.146 (d)(13)].

(Company Representative's Name) will conduct a review of the permit program at least annually utilizing canceled entry permits. Any inadequacies will be corrected.

APPENDIX D-1 - SAMPLE COPY OF A PERMIT-REQUIRED SPACE PROGRAM WORK SHEET

Permit Space Location: Reactor Vessel #1, Production Department, Main Building

Hazards: Acceptable Entry Conditions:

Oxygen Deficiency

Flammable Substances

-Toluene

-Acetone

19.5-23.5%

Toluene (LEL 1.3%)<10%

Cleaning Solvent (Acetone)

(LEL 2.6%)<10%

Toxic Substances

-Toluene

-Acetone

<150 ppm-15 min. STEL

<100 ppm-8 hour PEL

<1000 ppm-15 min. STEL

<750 ppm-8 hour PEL

Mechanical/Engulfment-Mixer

Raw Product Line

Toluene

-Isolate Space

-Isolate Space

-Isolate Space

Lockout/Tagout/Block

Disconnect Lines

Purge, Clean, Ventilate

Required Equipment:

Equipment

Required

Yes/No

Type

Air testing monitor

Yes

O2 and combustible gas meter; detector tubes for toluene and acetone

Forced air ventilation

Yes

Explosion-proof fan; adequate length of hose for ventilation

Communication

Yes

Radios

Personal Protective Equipment

Yes

Splash-proof goggles, Viton gloves, chemical-resistant clothing

Lighting

   

Barriers

   

Entry/Egress

   

Rescue Equipment

Yes

Retrieval system (full body harness, tripod, winch)

Self-contained breathing apparatus

Respirator

Yes

Air-purifying respirator with organic vapor cartridges

Other Equipment

Yes

High-pressure steam cleaner

 

Yes

Isolation equipment (locks, tags)

APPENDIX D-1 - SAMPLE COPY OF A PERMIT-REQUIRED SPACE PROGRAM WORK SHEET

Specific Space Entry Procedures:

1)Have entry supervisor obtain and complete entry permit items as necessary. Refer to this written entry program for procedures to follow. Have entry supervisor contact on site rescue service to notify them of confined space entry operation in progress.

2)Isolation Procedures-

(a) Raw Product Line - Have employees wear chemical protective clothing, gloves, splash-proof goggles, air-purifying respirators with organic vapor cartridges. Close, lock and tag upstream/downstream valves to the vessel. Bleed raw product residue from between valve. Misalign or remove section of pipe and cap. Use calibrated air-monitoring equipment to test valve or cap for any leaks.

(b) Mixer - Lockout/Tagout mixer's electrical source at the control box number one, switch number two. Verify that all stored energy has been dissipated from the mixer and it is disengaged by attempting to activate mixer.

(c) Drain residual material from vessel.

3)Rinse space with acetone-containing solvent applied from grounded and bonded low-pressure steam cleaner then allow material to drain from the vessel. Make sure affluent line is open.

4)Allow vessel to cool, then rinse vessel with grounded and bonded high-pressure steam cleaner using soap and water solution. Allow material to drain from the vessel and allow it to cool.

5)Make sure it is safe to remove entrance cover, and use only spark-proof tools.

6)Have attendant conduct air monitoring using calibrated equipment. Test vessel after opening for:

a. Oxygen

b. LFL

c. Toluene

d. Acetone

7) Purge vessel with forced air ventilation for 30 minutes.

8)Retest atmospheric conditions. If hazardous atmosphere exists, repeat cleaning and purging procedures.

9)Perform continuous forced air ventilation for duration of entry operation

10)Check and set up equipment. Have authorized entrant wear personal protective equipment and full-body harness with retrieval line attached.

11)Have entry supervisor inspect operation and provide authorization for entry. Post completed and signed entry permit near entrance for employees to review.

12)Conduct additional pre-entry test and have attendant conduct continuous monitoring for duration of entry operation.

APPENDIX D-1 - SAMPLE COPY OF A PERMIT-REQUIRED SPACE PROGRAM WORK SHEET

13)Complete work inside the vessel and ensure all authorized entrants have exited from the space.

14)Notify entry supervisor for cancellation of the entry permit.

15)Return space to normal operation.

16)Return canceled permit to Safety Manager.

Designated Required Personnel:

Authorized Entrant's Name(s): Individual's Name

Duties: Know hazards, use equipment properly, communicate with attendant, and alert attendant of any hazards, exit quickly if ordered to do so.

Attendant's Name(s):

Duties: Know hazards of space, behavioral effects of hazards, keep track of number of entrants, remain outside of space during entry, communicate with entrants, monitor activities outside space, summon rescue and emergency medical services, take actions to keep unauthorized entrants away from space, perform non-entry rescues, and do no other duties while monitoring entrants.

Entry Supervisor's Name:

Duties: Know hazards of the space, verify that acceptable entry conditions exist, terminate entry operations, verify that rescue service is available, remove unauthorized persons from area and ensure acceptable entry conditions are maintained at appropriate intervals.

Air Monitor's Name:

Duties: Know hazards of the space, know acceptable entry conditions, know how to properly calibrate, use, maintain and understand limitations of the air sampling device, know how to properly interpret the results obtained from the device.

Entry Permit: (company representatives name) will provide entry permits for PRCS operations. All entry permits will be completed by the entry supervisor authorizing entry. Upon cancellation of the entry permit by the entry supervisor, the entry permit will be returned.

Procedures for Summoning Rescue and Emergency Services:

Rescue services will be onsite for the duration of the entry operation. Attendant will use walkie-talkie radio to contact security officer, who will contact onsite emergency services at .

Multi-Employer Permit Space Operation? Y N

APPENDIX D-1 - SAMPLE COPY OF A PERMIT-REQUIRED SPACE PROGRAM WORK SHEET

List measures taken to close entry portal and return the space to normal operating conditions.

Attendant will ensure all entrants have vacated the space by checking their names off the entry permit. The entry supervisor will verify that the entry operation is complete and terminate the entry permit. The entry supervisor will also check to ensure that the entry portal is replaced properly and that the vessel is returned to normal operating conditions. The entry supervisor will notify the onsite rescue services that the confined space entry operation has been completed

The safety manager will review entry operations if measures taken did not fully protect employees. The safety manager will conduct a review of the permit space at least annually utilizing canceled entry permits. Any inadequacies will be corrected.

Note to the Employer: This sample copy of a completed PRCS worksheet is intended to give employers an idea of what types of information is helpful in completing this form. The procedures outlined are merely examples and should not be expected to be the correct protocol for each permit space entry operation. The employer is reminded that the information provided in their program should be as specific as possible to be beneficial to entry team members. For example, more specific list of duties for PRCS team members is likely needed to be appropriate.

APPENDIX E - HOST EMPLOYER=S RESPONSIBILITIES WITH CONTRACTOR WORK SHEET

In accordance with the requirements of the OSHA Permit-Required Confined Space Standard 1910.146, this information is being made available to (Name of Contracting Company) so they can take appropriate precautions to protect their employees during a PRCS operation. The following is a list of permit space locations, their identified hazards and any precautions taken by our firm.

Location

Hazard

Precautions Taken


Other applicable information concerning the permit space which may be of assistance:

Note to the Employer: A PRCS program is required for these spaces, unless alternative procedures or reclassification procedures can be utilized and certified to allow safe entry.

During the contractor's PRCS operation, our employees (will) (will not) be involved in entry or work near the permit space.

If our employees will be involved with entry into or near the permit space, then (Host Employer Representative's Name) will coordinate the entry operations with the contractor.

List whose permit space program will be used for entry into the space: (Host Employer's) OR (Contractor's)


APPENDIX E - HOST EMPLOYER'S RESPONSIBILITIES WITH CONTRACTOR WORK SHEET

Note to the Employer: This coordination should include a determination of whose permit program is to be used. The standard does not prohibit the host employer from requiring a contractor to use the host employer's permit program, nor does it require the contractor to use the host's program. The employer may choose to condition its contract on the contractor's compliance with the host's program.

Debriefing conference will be held with, (Host Employers representative) and (Contractors Representative) at the completion of the entry operation. At a minimum, the following items must be covered:

Was the PRCS program adequate? Y N
If no, what deficiencies were noted?
Were there any hazards confronted or created by the entry operation (e.g.; hazardous atmosphere, ventilation or testing equipment failure, unauthorized entry, etc.)? Y N
If yes, list circumstances and actions to be taken to prevent reoccurrence.