Exhibit 1, 242 FW 11
Guidelines for Determining Confined Spaces

Supersedes 242 FW 11, FWM 273, 09/30/96

Date: November 13, 2007

Series: Occupational Safety and Health

Part 242: Industrial Hygiene

Originating Office: Division of Safety and Health

 

 

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Facility Name: __________________________________________________________

 

Project Name: __________________________________________________________

 

Space: ________________________________________________________________

 

Location: ______________________________________________________________

 

Completed By: _________________________________________________________

 

Date/Time Completed: ___________________________________________________                

 

You must use the following criteria to decide if the space listed above is a confined space:  (Note: Go to 242 FW 11, section 11.3 to read a definition of confined space.)

 

_____  The space is enclosed;

 

_____  The space is large enough and is shaped so that an employee can enter and perform job tasks;

 

_____  The space has limited or restricted means to enter or exit (for example, manholes, tanks, trenches, vessels, silos, storage bins, hoppers, vaults, pits, wells, and diked areas); and

 

_____  The space is not designated for continuous occupancy.

 

If you check all 4 blanks, the space is a confined space.

 

You must use the following criteria to determine if a confined space is a permit-required confined space: (Note: Go to 242 FW 11, section 11.3B to read the definition of permit-required confined space.)

 

_____  The space contains a hazardous atmosphere or a known potential to contain a hazardous atmosphere.

 

_____  The space contains a material with the potential for engulfing an entrant (for example, grain, ore, sand, liquid, etc.). (Note: Go to 242 FW 11, section 11.7C to read the definition of engulfment.).

 

_____  The space is configured so that an entrant could be trapped or asphyxiated by inwardly converging walls, or a floor that slopes downward and tapers to a smaller cross-section.

 

_____  The space has some other recognized serious safety or health hazard.

 

If you checked any of the 4 blanks, the space is a permit-required confined space.

 


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