Lub siab thiab ntsuas kub kuaj ntsuas chav: haum rau qhov kub thiab ntsuas kub tsis zoo ntawm kev ntsuam xyuas cov khoom lag luam. Ntsuas ntau qhov ntsuas kev ua tau zoo rau cov ntu thiab cov khoom siv ntawm cov khoom muaj feem xyuam xws li hluav taws xob thiab hluav taws xob, tsheb, tsheb maus taus, huab cua, tub rog hiav txwv, cov tsev kawm qib siab thiab cov tsev kawm ntawv, cov chaw tshawb fawb, thiab lwm yam, nyob hauv qhov xwm txheej ntawm qhov kub thiab qhov kub thiab txias (hloov mus los) hloov.
Cov khoom muaj cov tswj qhov kub thiab dav, thiab nws qhov ntsuas qhov ua tau zoo ua tau raws li cov kev ntsuas ntawm lub teb chaws tus qauv GB10592-89 siab thiab tsis kub kuaj cua sov chav. Nws yog qhov tsim nyog rau kev soj ntsuam raws li GB2423.1 thiab GB2423.2" Khoom siv hluav taws xob thiab hluav taws xob ib puag ncig kev kuaj A: ntsuas kub ntsuas qis txoj kev ntsuas, ntsuas B: Kev ntsuas kub ntsuas hom" Kev ntsuas kub tsawg, ntsuas kub thiab ntsuas kub tsis tu ncua yog nqa tawm ntawm cov khoom. Cov khoom lag luam ua raws GB2423.1, GB2423.2, GJB150.3, GJB150.4, IEC, MIL cov qauv.
