Raws li hom kev sib txuas thiab cov yam ntxwv sib txuas, cov hluav taws tau muab faib ua A, B, C, D, E, F, K xya pawg.
Lub tshuab ua hmoov qhuav lub npe raws li hom hluav taws uas lawv siv tau, xws li BC cov hmoov qhuav tuaj yeem tua cov chav kawm B thiab Chav C, ABC qhuav hmoov tuaj yeem tso tawm Chav Kawm A, B thiab Chav C.
Chav Kawm Ib Nrab Hluav Taws: yog hais txog hluav taws kub. Cov tshuaj no feem ntau yog cov organic thiab feem ntau ua cov pa hluav taws thaum hlawv.Yog li ntoo, thee, paj rwb, ntaub plaub, ntaub qhwv, ntawv thiab lwm yam hluav taws.
Chav Kawm B tua hluav taws: hluav taws kub ntawm cov kua los yog roj ntsha cov roj ua kom zoo.Xauv li roj av, diesel, roj av, methanol, ethanol, asphalt, paraffin thiab lwm yam hluav taws.
Chav kawm hluav taws kub C: hais txog roj hluav taws kub.Xim li roj, nkev, methane, ethane, hluav taws kub, hydrogen thiab lwm yam hluav taws.
Chav Kawm D Hluav Taws: yog hais txog cov hlau hluav taws kub. Xws li poov tshuaj, sodium, magnesium, aluminium magnesium alloy thiab lwm yam hluav taws.
Chav Kawm Hluav Taws E: nyob hluav taws. Hluav taws kub uas hluav taws hlawv ib qho chaw.
Chav F Hluav Taws: Hluav taws ntawm cov khoom ua noj (xws li cov tsiaj thiab roj cog ntoo) hauv cov tais diav.
Chav kawm ntawv qib hluav taws K: hluav taws uas siv tau roj.
Feem ntau qhov nruab nrab ntawm kev sib txuas ntawm cov roj noj tau ntau dua li cov roj roj hydrocarbon, piv nrog rau lwm hom hluav taws kub ua kua, cov roj siv tau hluav taws kub yog qhov nyuaj rau tua, vim tias muaj ntau yam cwj pwm txawv ntawm hydrocarbon roj hluav taws, nws muab faib ua ib pawg cais. ntawm hluav taws.
Muaj ntau ntau hom cov hmoov qhuav qhuav tua hluav taws, uas tuaj yeem muab faib ua peb yam:
1. Cov hmoov qhuav ua raws li sodium bicarbonate (poov tshuaj) kom tua cov hluav taws hauv cov kua dej, roj thiab khoom siv nyob; Nov yog BC tshuaj qhuav hmoov
2. Cov hmoov qhuav ua raws li ammonium phosphate, diammonium phosphate, ammonium phosphate thiab nws cov xyaw setomodo, siv los tua cov hluav taws uas ua rau cov nplaim taws, cov nplaim taws, cov pa taws thiab cov khoom siv raug them; qhov no yog ABC qhuav hmoov tshuaj lom neeg: ABC qhuav hmoov tshuaj txhuam 50%, ABC qhuav hmoov 90%, thiab lwm yam.
3. Cov hmoov qhuav ua raws li sodium chloride, potassium chloride, sodium chloride, sodium carbonate, thiab lwm yam, yog siv los tso tawm cov hluav taws kub cov hlau. Ntawd yog BCD qhuav cov hmoov tshuaj.
