Uruganda rwa kane
Ubwiza nicyo gipimo cyonyine kubicuruzwa. Imyifatire ikomeye kandi itekanye igomba gukoreshwa mubice byose byumusaruro.
Uburyo bwo Kugenzura
Uburyo bw'igerageza bwo guhangana nubushyuhe bwumuriro nigihe kirekire cyibikoresho byikirahure; GB / T 4548 uburyo bwo gupima no gutondekanya uburyo bwo kurwanya isuri yamazi yimbere yimbere yikirahure; Imipaka yemewe ya gurş, cadmium, arsenic na antimony yasesekaye mubikoresho byibirahure; 3.1 ubuziranenge kumacupa yikirahure
Ikizamini cy'imbaraga
Icupa ryizengurutse rigomba gukorwa hakurikijwe ibivugwa muri GB / T 6552. Hitamo igice kidakomeye cyangwa igice cyumubiri cy icupa kugirango kigire ingaruka. Ubwoko bwikizamini burashobora gukorwa mukwigana umusaruro cyangwa kugaragariza imashini.
Kugenzura icyitegererezo
Ubwa mbere, ubare umubare wibipapuro byakuweho ukurikije 5% yumubare wuzuye wapakiye muriki cyiciro cyibicuruzwa: kimwe cya gatatu cyumubare usabwa wapakiwe byatoranijwe kuva imbere, hagati ninyuma ya buri kinyabiziga, na 30% - 50% by'ibipaki byatoranijwe kuri buri paki kugirango bigenzurwe.
Kuki Twebwe?
Imyitwarire ikomeye kandi ishinzwe umusaruro, inzira nziza yo gukora. Igenzura ubuziranenge bwicupa kumurongo kugirango umenye neza ko icupa rikomeye kandi riramba.
