04 / Acceptance and handover
Prove the result under a representative production condition
Simulate and physically challenge simultaneous, transition, feedback-failure and manual cases, verifying no conflict, clear diagnosis, audit trail, recovery and actual destination. Review as-built documents and inspect fabrication, then verify routes, pressure, flow, drainability, segregation, recovery, alarm response and representative transferred-product condition. Put the sample or test material, method, instrument, production state, duration, limit, witnesses, retained record and deviation authority in the protocol before testing begins. Requalify when a product, package, site, speed or connected system invalidates the accepted basis.