Nrog rau txoj kev loj hlob thiab kev loj hlob ntawm kev lag luam luam ntawv, peb tau maj mam paub txog qhov tseem ceeb ntawm kev tiv thaiv ib puag ncig thiab cov peev txheej. Nyob rau hauv cov txheej txheem luam ntawv, ntau cov kuab tshuaj yog siv thiab tso tawm, ua rau muaj kuab paug rau ib puag ncig. Yog li ntawd, nrhiav txoj hauv kev zoo los rov siv dua thiab pov tseg cov kuab tshuaj tau dhau los ua teeb meem ceev rau kev lag luam luam ntawv.
Cov khoom siv kho mob rov qab kho tau yog ib txoj hauv kev zoo tshaj los daws qhov teeb meem no. Cov khoom siv no siv cov cuab yeej tshwj xeeb physicochemical kev kho mob kom raug tshuaj xyuas, rov qab, thiab tshem tawm cov kab mob los ntawm cov kuab tshuaj siv, txo cov kev cuam tshuam ib puag ncig thiab ua rau rov siv dua.
Cov khoom siv kho mob rov qab siv tau dav siv hauv kev lag luam luam ntawv, thiab tuaj yeem siv rau yuav luag txhua qhov kev kho mob hnyav, xws li acetone, cawv, butyl ketone thiab lwm yam. Kev siv cov cuab yeej no tuaj yeem txo qhov kev ua qias tuaj ib puag ncig ntawm kev lag luam luam ntawv, thiab cov kuab tshuaj rov qab tuaj yeem siv dua, yog li txuag tau ntau tus nqi.
Cov khoom siv kho mob rov qab muaj ntau yam zoo. Ua ntej tshaj plaws, cov cuab yeej no siv cov cuab yeej siv siab heev kom ua tiav cov txiaj ntsig zoo, yog li txo cov pa phem. Qhov thib ob, kev ua haujlwm ntawm cov cuab yeej siv tau yooj yim hauv cov txheej txheem ntawm kev siv, tsis tas yuav tsum muaj cov neeg ua haujlwm, thiab kev ua haujlwm yooj yim heev. Qhov tseem ceeb tshaj plaws yog tias cov khoom siv kho qhov hnyav rov qab tsis muaj qhov cuam tshuam tsis zoo rau ib puag ncig thiab yog qhov ua tau zoo, ib puag ncig tus phooj ywg thiab kev lag luam hnyav kev kho mob.
