Muab cia rau hauv lub tsev rau khoom txias thiab muaj cua sov. Cia kom deb ntawm cov txim taws thiab cov khoom kub. Qhov kub ntawm lub tsev rau khoom yuav tsum tsis pub tshaj 30 ℃. Nws yuav tsum tau muab cais cais los ntawm oxidants, acids, thiab halogens, thiab yuav tsum tsis txhob sib xyaw rau kev khaws cia. Siv tawg-pov thawj teeb pom kev zoo thiab cov chaw tua hluav taws xob. Txwv tsis pub siv cov khoom siv mechanical thiab cov cuab yeej uas muaj feem cuam tshuam rau txim. Cov chaw cia khoom yuav tsum tau nruab nrog cov khoom siv thaum muaj xwm ceev rau cov kua dej.

Thaum thauj hlau hlau cov thooj voos kheej kheej, nws yog qhov tsim nyog los hnav lub kaus mom hlau kev nyab xeeb ntawm lub tog raj kheej. Feem ntau cov thooj hniav hlau feem ntau yog muab tso rau tiaj tus, thiab lub raj mis yuav tsum tau ntsib txoj kev coj thiab tsis hla; Qhov kom siab yuav tsum tsis txhob tshaj qhov laj thawj tiv thaiv ntawm lub tsheb, thiab cov duab dhos cov ntaub ntoo cov ntaub qhwv yuav tsum tau siv los ruaj ntseg nws kom tiv thaiv dov. Thaum lub sij hawm thauj mus los, tsheb thauj mus los yuav tsum tau nruab nrog hom sib xws thiab muaj ntau ntawm cov khoom siv hluav taws xob tua hluav taws. Cov pa tawm ntawm lub tsheb nqa cov khoom no yuav tsum tau nruab nrog cov khoom siv nplaim taws retardant, thiab nws raug txwv tsis pub tshaj plaws rau chaw thau khoom thiab thau khoom. Nws yog nruj me ntsis txwv tsis pub sib xyaw thiab thauj cov oxidants, acids, cov kua tsheb yuav tsum tau nqa tawm thaum sawv ntxov thiab yav tsaus ntuj nyob rau lub caij ntuj sov kom tiv thaiv kev tshav ntuj ncaj qha raug. Thaum lub sij hawm nres, nyob deb ntawm cov txim taws thiab cua sov. Thaum lub sijhawm kev tsheb thauj mus los, nws yog ib qho tsim nyog los ua raws li txoj kev ua thiab nres hauv thaj chaw thiab cov pej xeem muaj ntau thaj chaw. Nws raug txwv rau xaub thaum lub sijhawm kev tsheb nqaj hlau.