Advanced Pharmaceutical Management and Industry Practices

A: A: Chlorides plus tensile residual stress points straight at SCC, especially at weld HAZ. B: General corrosion of 316L in WFI at neutral pH is slow and wouldn't spike OOS. C: MIC needs nutrients and time; clean WFI cycles don't support it. D: No electrical couple described; supports aren't wetted.

A: A: 0.2% per day times 5 days gives ~1%; for small losses linear works. B: Misreads the rate by a factor of five. C: Daily compounding at this rate doesn't reach 5%. D: Dismisses measurable degradation seen in stability data.

A: A: New filters plus clean conductivity but high endotoxin points to insufficient flushing. B: Wouldn't align with a single lot change. C: Backflow would affect multiple batches and bioburden too. D: PW trends would show a gradual rise, not a step change.

A: A: 'FC' is fail closed; dashed line shows pneumatic signal. B: Manual valves aren't shown with actuators. C: Fail open would be marked FO. D: Batch control isn't encoded in this symbol.