The language of process safety is filled with its own jargon. Architectures are described as 1oo1, 1oo2, 2oo2, 2oo3, etc. The "oo" means "out of". So, 1oo1 means one-out-of-one. William M. Goble and Harry Cheddie wrote a book, Safety Instrumented Systems Verification...
Emerson's Mike Boudreaux shares some misconceptions that automation and safety professionals have about functional safety. Here they are in Mike's words: Emerson has provided free safety lifecycle seminars to process industry companies around the world, including...
Update: A blog visitor asked about the volume tank sizing calculations, Here's a link to the Fisher Type 377 Trip Valve Bulletin which includes volume sizing calculations on page 8. I saw a great process safety article in InTech magazine titled, When failsafe isn't...
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