04 / Acceptance and handover
Prove the result under a representative production condition
Challenge highest mineral formula and water-chemistry limits, monitor clarity or qualified ion result, and verify complete addition, no precipitate, uniformity, transfer and hold stability. 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.