04 / Acceptance and handover
Prove the result under a representative production condition
Observe controlled fills and drawdowns at conditioning limits, map residence and wall residue, and verify outlet flow, refill response, cleanability and measured residual mass. Use representative powders to verify containment, transfer rate, heel, feeder accuracy, foreign-material control, clean-down, changeover and reconciled mass delivery. 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.