1. Kev Ua Haujlwm:
Daim ntawv thov ntawm cov tooj liab tuab hauv PCB cov ntawv pov thawj yog yuav luag txhua qhov, thiab nws siv tau rau ntau qhov chaw, suav nrog ntau yam khoom siv hauv tsev, khoom siv thev naus laus zis, tub rog, kho mob thiab lwm yam khoom siv hluav taws xob. Cov phaj tooj liab tuab muaj qhov zoo tshaj plaws elongation kev ua haujlwm, siab kub tsis kam, siab kub tsis kam, thiab corrosion tsis kam, yog li cov khoom siv hluav taws xob cov khoom lag luam muaj lub neej ua haujlwm ntev dua, thiab nws kuj pab tau yooj yim qhov loj me ntawm cov khoom siv hluav taws xob. Hauv tshwj xeeb, cov khoom siv hluav taws xob uas xav tau khiav tawm ntau dua qhov hluav taws xob thiab qhov xav tau tam sim no xav tau cov phiaj tooj liab tuab dua.
2. Qhov zoo:
Hauv PCB cov ntaub ntawv pov thawj, lub phaj tooj liab tuab muaj qhov ua tau zoo thiab kev ua kom haum. Tsis tas li ntawd, nws tseem tsim nyog rau ntau yam txheej txheem xws li chav tsev phab ntsa daim phiaj, tiaj hom xauv tshuab, sawv ntug kev sib koom tes, Bem systems, dej nag tso cua sov thiab Cov Tshuab thiab tuaj yeem hloov kho rau ntau cov txheej txheem yuav tsum tau ua los ntawm cov kab ke no. Lwm qhov zoo dua ntawm cov tooj liab tuab yog tias nws pheej yig thiab feem ntau muag hauv khw muag khoom kho vajtse