Hazardous Materials

Toulene vapors are HEAVIER than air

I normally do not share construction accidents, as I am not a construction safety professional. I would not even attempt to play one on TV! However, this case is an excellent example for the general industry and those who work with hazardous chemicals. One of the reasons why my HAZCOM training is 2+ hours is…...

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Secondary Containment and “Equalization” of tanks

I think most EHS professionals will agree that bulk tanks of hazardous materials need some means of “secondary containment”. This practice has been in place for my entire career and rarely gets challenged. However, in recent years I have come across several scenarios where either the facility/unit designed the process to function this way or…...

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Not recognizing “change of service” for Pressure Vessel(s) leads to catastrophic failure (Brittle Fracture Failure)

On September 19, 2002, Employee #1 was painting one (1) of six (6) tanks containing carbon dioxide when three (3) of them suddenly exploded. He was killed. The tanks were originally built as railroad tank cars for liquefied petroleum gas and they were not designed to store carbon dioxide…. Membership Required You must be a...

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Chemical Exposures from Industrial Valve and Piping Systems

Fundamentally, employers and employees must be alert to the fact that working with a “closed system” does not always ensure safety. Operations involving the opening of valves or pumps on otherwise closed systems or working on such equipment that is not isolated or locked/tagged out are particular sources of danger. When a normally closed system…...

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