Permit Required Confined Spaces

Employee enters reactor and dies from fall after being overcome by VC vapors

At approximately 4:00 a.m. on March 29, 2020, an employee was installing a blind on a flange on a reactor. Then, the probe stem fell inside of the reactor, and the employee tried to fish it out. Using a ladder, the employee went inside the reactor that was NOT cleared for entry because the reactor…...

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What does “potential” mean in relation to Permit-Required Confined Spaces (PRCS)

The word “potential” is defined by Merriam-Webster as: existing in possibility : capable of development into actuality In OSHA’s PRCS standards (both 1910 and 1926 versions) it uses the word “potential” when talking about atmospheric hazards; especially when we are talking about RECLASSIFYING a PRCS to a NON-PRCS using 1910.146(c)(7) or 1926.1203(g) 1926.1203(g)(1) If the permit…...

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Is NFPA 326 a step up from OSHA’s PRCS entry standards?

So OSHA made some serious improvements in their latest Construction Standard, 1926.1201-.1213, for confined spaces.  But there is another option to “upgrade” our efforts for entry safety practices and that is NFPA 326 – Standard for the Safeguarding of Tanks and Containers for Entry, Cleaning, or Repair. … Membership Required You must be a member to...

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Is a spiral freezer a Permit-Required Confined Space (PRCS)?

The short and simple answer is YES. It is, without a doubt, a PRCS.  This debate is much like the “Is an Evaporative Condenser a PRCS” discussion.  This week, I was presenting at the 2020 Refrigerating Engineers & Technicians Association (RETA) virtual conference, and my presentation was “Evaluating Your Ammonia Refrigeration System to determine if…...

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PRCS Fatality in 8’X8’X10′ pit (Oxygen Deficiency)

At 9:50 a.m. on June 5, 2018, Employee #1 was in an 8 foot by 8-foot pit that was approximately 10 feet deep, cleaning out built-up sediment using a brush and 5-gallon bucket. Employee #1 was being helped by Employee #2, who was dumping the waste outside of the building that the pit was in…....

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Isolating a PRCS with misaligning or removing sections of lines, pipes, or ducts

Does your entry procedures/practices allow for “misaligning or removing sections of lines, pipes, or ducts” as a means to isolate a PRCS?  If yes, do your procedures/practices specify the length of “sections of lines, pipes, or ducts” that have to be removed in order to meet the intent of “isolation”?  I can not recall where…...

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The Silver Medalist for the number of “would-be-rescuers” (Water Valve Pits are PRCSs)

NOTE: this incident happened long BEFORE OSHA had 1910.146 in place… At about 3:30 p.m. on October 10, 1986, Employee #1, a self contractor, arrived to inspect the sawmill’s fire protection sprinkler system backflow valve located in an underground vault 8 ft deep by 6 ft wide by 12 ft long with a 31 in…....

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PRCS (Heater Treater) Explosion fatality (Flammable atm & $44K)

At 10:45 a.m. on January 11, 2020, Employee #1, employed by an oil and gas operation company, was overseeing a heater treater welding repair. Employee #2 emptied the remaining fluids in the heater treater. Employee #1 power washed the heater treater to remove any remaining flammable materials and ensure that it was safe for welding…....

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OSHA grants an interim order for isolation of a “condenser/water box” (PRCS isolation – 1910.146(d)(3)(iii))

CAUTION:  This interim order is specific to the facility requesting it.  Do NOT use these measures at your facility!!! If I had a nickel for every time I have heard the excuse… “its more dangerous to do these isolations than it is to do the entry with lesser isolations,” I would not be writing this…...

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FATAL PRCS accident; Explosion (Flammable atm & $44K)

On or about January 11, 2020, employees engaged in performing cleaning and maintenance on a heater treater system with a combustible engine power washer within range of flammable material stored within the heater treater were exposed to burn hazards…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log...

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PRCS Rescue and Emergency Services (1926.1211)

As the debate continues to rage regarding the types of PRCS rescue and when they are required, OSHA has seen fit to publish the following: (emphasis by me) Effective emergency planning is vital to ensure that any entrant who becomes sick or is injured in a permit space can be evacuated quickly and safely. The…...

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Alternate Procedures for Certain Permit Spaces — Section 1203(e)

This a followup to my earlier posting about OSHA LOI and using both Reclassifications and Alternate procedures on the same space at the same time.  I received a lot of questions from that post so I thought I would share the info I shared with those who contacted me.  This information is also directly from…...

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