HAZOP Guidewords At Your Fingertips
Recall and apply common HAZOP guideword patterns to chemical manufacturing nodes.
NODE What must be clear before guidewords help? Think of the HAZOP starting point. Setup Which entry is HAZOP-ready? Compare The strong entry gives the team something to evaluate: initiating cause, consequence, safeguard timing, and residual risk. The team says, "Reverse flow cannot happen because the line has a check valve." Use when a safeguard is being treated as proof the deviation is impossible. Your line Let us still capture the reverse-flow cause and then test whether the check valve is an effective safeguard: failure mode, inspection basis, installation direction, and leak-by consequence. Accepting the safeguard as a reason to…
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