OSHA’s PSM standard requires Operating Procedures to address “special or unique hazards”
1910.119(f)(1)(iii) Safety and health considerations:
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1910.119(f)(1)(iii)(E) Any special or unique hazards.
This item is often not necessary with many of the PSM standard’s Highly Hazardous Chemicals; however, HFO-1234yf has a unique property that falls into this requirement. HFO-1234yf is…