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When an entrant is at an LEL, they are usually way beyond the PEL/TLV/STEL

When we talk about Lower Explosive Limits, most people imagine a flash-fire hazard (as they should!). But when a worker is in a flammable atmosphere, they are also being WAY OVER EXPOSED. Take the following OSHA PRCS fatality case, where the worker died from being overexposed to organic vapors. The Atlantic City Fire Department Confined

Manual addition of powders to a flammable atmosphere (NFPA 77)

As I noted in 2007, the #1 cause of process vessel deflagrations is the manual additions of powders to process vessels which have a flammable atmosphere. NFPA 77 covers this hazard with several solutions, yet many facilities are either not aware of these risks and solutions or simply have their head buried regarding these catastrohic

“Switch Loading” injures worker

The definition of “switch loading: Switch loading is the hazardous practice of loading a low-vapor-pressure product (such as diesel or heating oil) into a tank compartment that previously contained a high-vapor-pressure, flammable product (such as gasoline) without first cleaning it. This creates a high risk of static electricity generation and explosion, as residual vapors can

EPA RMP Citations @ sulfuric acid manufacturer (NH3, CS2, CH 3SH, C3H6, C2S5SH & $40K)

Respondent has six regulated substances present at the Facility:anhydrous ammonia, carbon disulfide, 2-butene, 3-butadiene, propylene, and ethyl mercaptan. Respondent’s Facility manufactures sulfuric acid and regenerates spent sulfuric acid, meeting the definition of “process”, as defined by 40 C.F.R. § 68.3. Respondent has a quantity of the aforementioned chemicals greater than the threshold. ALLEGED VIOLATIONS TrainingOf

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