Yas zaj duab xis yog qhov ntau ntawm cov khoom siv yas siv hauv lub neej txhua hnub. Peb feem ntau pom cov xov tooj txawb xov tooj, zaj duab xis tsheb, ntawv nplaum phab ntsa, yas lo zaj duab xis, thiab lwm yam Qhov tseeb, yas yog qhov muaj nyob rau hauv peb lub neej, thiab zaj duab xis yas yog ib qho ntawm lawv. Txawm hais tias cov yeeb yaj kiab insulating hauv lub hau ntawm cov khoom tu tawv nqaij thiab cov tshuaj pleev ib ce uas siv los ntawm cov poj niam yog nyob rau hauv daim ntawv yas zaj duab xis. Thaum nws hais txog pvc zaj duab xis, qhov tseeb, tam sim no, hom yeeb yaj kiab no tau siv ntau dua hauv qee cov khoom siv hluav taws, thiab nws lub ntsiab tseem ceeb yog tias nws muaj nplaim hluav taws zoo dua.
Kev siv cov ntaub ntawv no tseem muaj txiaj ntsig zoo heev. Hauv nroog, thaum qee lub caij hloov pauv, qhov kub ntawm qhov sib txawv thaum sawv ntxov thiab yav tsaus ntuj yog qhov loj heev, thiab qee qhov chaw tsis tshua zoo, uas yuav yooj yim ua rau hluav taws kub. Lub sijhawm no, cov tua hluav taws xav tau siv los tua hluav taws. Rau cov no, ntau cov ntaub ntawv yas tuaj yeem siv rau hauv cov cuab yeej hluav taws kub thiab lwm yam khoom siv hluav taws kub kom ua tiav cov nplaim hluav taws kub nyhuv. Thiab ntau ntawm nplaim taws retardant ntawm cov plastics yog qiv los ntawm pvc zaj duab xis. Nws tuaj yeem hais tias cov nplaim taws retardant ntawm cov khoom siv no yog ntawm kev siv.
Raws li kev ntsuam xyuas ntawm tus yam ntxwv thiab qee qhov tsis txaus ntseeg ntawm daim yeeb yaj kiab yas, yas siv tau rau hauv qhov chaw uas nws tuaj yeem ua lub luag haujlwm. Nov yog daim ntawv foos tseem ceeb ntawm kev txhim kho cov ntaub ntawv yas ntawm kev ua lag luam tam sim no, thiab nws tseem yog qhov kev txhawb ntawm kev txhawb nqa ntawm kev txhim kho ntawm cov khoom lag luam.