OSHA LOTO eTool
OSHA LOTO eTool
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Case Study 3: Replacement of Nitrogen Pressure Vessel Seals
 
Incorrect.  Actually, the answer here is yes.

The pressurized nitrogen would be considered an energy source. A vessel pressure of 5,000 psig clearly represents a hazardous level of energy. Therefore, the energy source must be bled off, and the vessel secured at atmospheric pressure, before the seals can be replaced.




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OSHA LOTO eTool
eTools Home : Lockout/Tagout Standard | Preamble | Directive | Interps | Case Law | Credits
OSHA LOTO eTool
OSHA LOTO eTool