DASQUA value-traceable quality control system.
- International CNAS ovomerezeka labu ndi malo chitukuko. Dongosolo lathunthu loyang'anira PSI Kuwonetsetsa kuti mayendedwe odalirika kuyambira koyambirira kwa m'ma 1980 akutumikira makasitomala mwatsatanetsatane, kukonza magalimoto, matabwa & amisiri.