Run A PSSR Like A Readiness Gate
Apply PSSR checks to decide whether a modified chemical process is ready for hazardous material introduction.
A solvent recovery column has a new condenser after an MOC. The team must decide whether solvent can be introduced today. PSSR checks construction, procedures, PHA/MOC closure, and training before hazardous material enters the modified process. Treating mechanical completion as startup readiness, then discovering after solvent introduction that alarms, procedures, or training still assume the old design. Confirm design match Compare installed condenser tag, materials, pressure rating, vent and drain orientation, relief path, and instrument taps against the approved MOC package and updated P&ID. Construction completion says something was installed. PSSR asks whether the installed equipment matches the design basis…
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