Qhov txawv ntawm Fabric Safety Class A, B, thiab C yog dab tsi?

Class A Fabric

Class A npuag muaj kev nyab xeeb siab tshaj plaws. Nws yog tsim rau cov khoom me me thiab me me, xws li cov pawm, ris tsho hauv qab, bibs, pajamas, thiab txaj. Nrog rau cov qauv kev nyab xeeb siab tshaj plaws, cov ntsiab lus formaldehyde yuav tsum tsis pub tshaj 20mg / kg, thiab nws yuav tsum tsis muaj carcinogenic aromatic amine dyes. Tus nqi pH yog ze rau nruab nrab, ua rau cov tawv nqaij tsawg heev. Nws kuj muaj xim ceev ceev thiab tsis muaj cov hlau hnyav thiab lwm yam khoom tsis zoo.

Class B Fabric

Cov chav kawm no tsim nyog rau cov neeg laus cov khaub ncaws niaj hnub uas tuaj rau hauv cov tawv nqaij ncaj qha, xws li lub tsho, T-shirts, tiab, thiab ris. Nws muaj qhov ntsuas kev nyab xeeb nruab nrab, nrog cov ntsiab lus formaldehyde tsis tshaj 75mg / kg. Nws tsis muaj cov carcinogens paub, thiab nws tus nqi pH yuav txawv me ntsis ntawm qhov nruab nrab. Cov xim ceev ceev yog qhov zoo, thiab cov ntsiab lus ntawm cov khoom tsis zoo ua raws li cov qauv kev nyab xeeb dav dav.

Class C Fabric

Cov chav kawm no yog tsim rau cov khoom uas tsis ncaj qha rau ntawm daim tawv nqaij, xws li cov tsho loj thiab cov ntaub. Nws muaj qis dua kev nyab xeeb coefficient, nrog formaldehyde cov ntsiab lus ua tau raws li cov qauv hauv paus. Tej zaum nws yuav muaj cov tshuaj me me, tab sis cov no tsis dhau kev txwv kev nyab xeeb. Tus nqi pH tuaj yeem sib txawv ntawm qhov nruab nrab tab sis yuav tsis ua rau tawv nqaij tawv. Cov xim ceev ceev yog qhov nruab nrab, thiab cov xim me ntsis fading yuav tshwm sim.