Awọn kilasi A ati C tọka si awọn ipo nibiti awọn ohun elo eewu ti wa ni ipamọ, pẹlu ti o ga bugbamu-ẹri Rating ti CT.
Gaasi ẹgbẹ / otutu Ẹgbẹ | T1 | T2 | T3 | T4 | T5 | T6 |
---|---|---|---|---|---|---|
IIA | Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, akiriliki acid, benzene, styrene, erogba monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, kiloraini | kẹmika kẹmika, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane | Pentaneni, Pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, nafta, epo epo (pẹlu petirolu), epo epo, Pentanol tetrachloride | Acetaldehyde, trimethylamine | Ethyl nitrite | |
IIB | Propylene ester, dimethyl ether | Butadiene, epoxy propane, ethylene | Dimethyl ether, acrolein, hydrogen carbide | |||
IIC | Hydrogen, omi gaasi | Acetylene | Erogba disulfide | Ethyl iyọ |
Ni Ilu China, Kilasi A ni igbagbogbo pẹlu awọn aaye ti o ni propane ninu, lakoko ti Kilasi C ni awọn agbegbe pẹlu awọn gaasi bii hydrogen ati acetylene.