Singenza ukuqinisekiswa ngemva kokuhlolwa ngempumelelo ukuze siqiniseke ukuthi sonke isikhungo, okokusebenza nendawo esikuyo kuyahlangabezana nezidingo zakho zangempela kanye nemithethonqubo esebenzayo. Umsebenzi wokuqinisekisa imibhalo kufanele wenziwe okuhlanganisa i-Design Qualification(DQ), i-Instalation Qualification(IQ), i-Operation Qualification(OQ) kanye ne-Performance Qualification(PQ).