Zvinwiwa zvakawanda zvekurongedza pamusika pari zvino zvakaoma kuzadzisa kuchengetedzwa kwechikafu chenyika uye zvinodiwa zvezvakatipoteredza, dambudziko guru rinosanganisira benzene rinopfuura bid, mabhakitiriya, heavy metal residues, nezvimwe.
Benzene imhando yemhando yakasimba yecarcinogenic substance, semuenzaniso, kunyanya mumachira, zvinonamira, zvinoshandiswa zvakanyanya mukugadzirwa kwekudya kurongedza.
Nekuda kwekuti mabhizinesi mazhinji haana kudzora uye nzira yekuona, zvinhu zvekurongedza chikafu zvakanyanya kuita benzene inodarika bid.
Izvo zvisina kukodzera zvekurongedza zvinhu zvinogona kuita kuti chikafu chisvibiswa, uye kuisa hutano hwevatengi mungozi.
solvent residual solvent residual composite packaging inowanzo gadzirwa muinki yekudhinda, solvent uye maitiro ekugadzira, zvinowanzoshandiswa zvakadai se toluene uye butanone, ethyl acetate.
《GB9683—
1988 makomisheni yakaoma, pachayo haisi kuora, kugaya uye kunyura mumuviri zvakare hakusi, uye nekudaro inoonekwa seyakachengeteka, isina-chepfu yekurongedza zvinhu.
asi nekuda kwekudiwa kwekugadzirisa, iyo inowanzobatanidza zvakasiyana-siyana zvekuwedzera, zvakadai sekusimudzira mumiririri, mumiririri wekudzivirira, mumiriri wekuzadza, kuunza matambudziko ekuchengetedza chikafu.
Synthetic rubber inonyanya kutorwa kubva kuoiri kemikari mbishi zvinhu, mhando yakawanda, inoumbwa nemonomer kuburikidza neakasiyana maitiro epolymer komponi, emahara mamorekuru madiki anokuvadza kumuviri wemunhu.
