Ua raws li cov txheej txheem khaws cia yog qhov tseem ceeb. Txhua yam khoom siv cawv, txawm siv los ntxuav lub raj mis lossis lwm lub hom phiaj, yuav tsum tau khaws cia rau hauv cov khoom tawg-pov thawj.
1. Cawv yuav tsum tau muab cia rau hauv txias, ventilated txee, cais los ntawm oxidizers, kua qaub, thiab alkali hlau, thiab qhov kub yuav tsum tsis pub tshaj 30 ° C. Cov txee yuav tsum muaj hluav taws xob zoo li qub hauv av, thiab yog ua tau, yuav tsum yog tawg-pov thawj. Txhua lub txee yuav tsum tsis txhob khaws ntau tshaj 50L cawv.
2. Khaws cawv rau hauv nws lub hnab ntim khoom qub, kom ntseeg tau tias nws tau sau npe thiab kaw kom inhibit evaporation.
3. Qhov chaw cia rau cawv yuav tsum nyob deb ntawm qhov hluav taws kub (xws li qhib nplaim taws, haus luam yeeb), qhov chaw tshav kub (zoo li cov khoom siv hluav taws xob), thiab nplaim taws cov ntaub ntawv, thiab yuav tsum muaj kev pom zoo qhuav hmoov tua hluav taws muaj.