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In process safety, we deal with a lot of pressure vessels and even some boilers. It took me years to understand the differences between the U-1, P-2, and P-3 forms and all the requirements for the placement and management of these pressure-retaining containers. This article is intended to help safety pros who may have to…...

A five-pound CO2 cylinder being stored in a compressed gas storage cage at a power plant failed catastrophically and became a missile. The cylinder destroyed the storage cage, then struck one of six stationary hydrogen storage cylinders used as emergency make-up for the hydrogen supply system. One of the hydrogen cylinders was broken away from…...