Cov khoom siv sib xyaw ua ke ntawm cov kuab tshuaj seem

Cov tshuaj seem ntawm cov khoom sib xyaw ua ke feem ntau tsim tawm hauv cov xim luam ntawv, cov tshuaj seem thiab cov txheej txheem ntau lawm, cov tshuaj feem ntau siv xws li toluene thiab butanone, ethyl acetate.

GB9683—1988 cov tshuaj sib xyaw ua ke, nws tus kheej tsis yog kev lwj, kev zom thiab kev nqus hauv lub cev kuj tsis yog, yog li ntawd suav hais tias yog cov khoom ntim khoom muaj kev nyab xeeb thiab tsis muaj tshuaj lom. Tab sis vim yog qhov xav tau ntawm kev ua tiav, uas feem ntau koom nrog ntau yam khoom ntxiv, xws li cov neeg sawv cev txhawb nqa, tus neeg sawv cev tiv thaiv, tus neeg sawv cev sau, ua rau muaj teeb meem kev nyab xeeb ntawm cov zaub mov. Cov roj hmab hluavtaws feem ntau yog los ntawm cov roj tshuaj raw khoom, ntau yam, yog tsim los ntawm monomer los ntawm ntau yam txheej txheem ntawm cov tshuaj polymer, cov molecule me me dawb yog qhov tsis zoo rau tib neeg lub cev.