04 / Acceptance and handover
Prove the result under a representative production condition
Challenge empty, partly filled and interrupted startups, verify complete liquid prime and air removal, then demonstrate blocked powder feed, stable circulation, recovery and clean restart. Sample spatially and by time to verify lump removal, hydration, viscosity, particle distribution, temperature, air pickup, cycle time, heel and repeatability. 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.