Wanne Yake Da Matsayin Tabbataccen Fashewa, BT4 ya da CT4

Rarraba-hujjar fashewar kayan aikin CT4 ya zarce na kayan aikin BT4.

Daraja Da Matsayi	Wutar wuta da Rukuni
-	T1	T2	T3	T4	T5	T6
-	T;450	450≥T sama da 300	300≥T ：200	200≥T：135	135≥T 100	100≥T：85
I	Methane
IIA	Ethane, Propane, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, Ammonia, Carbon Monoxide, Ethyl acetate, Acetic acid	Butane, Ethanol, Propylene, Butanol, Acetic acid, Butyl Ester, Amyl acetate acetic anhydride	Pentane, Hexane, Heptane, Decane, Octane, fetur, Hydrogen sulfide, Cyclohexane, fetur, Kerosene, Diesel, Man fetur	Ether, Acetaldehyde, Trimethylamine		Ethyl nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke Oven Gas	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	Dimethyl Ether, Isoprene, Hydrogen sulfide	Diethylether, Dibutyl Ether
IIC	Ruwan Gas, Hydrogen	Acetylene			Carbon Disulfide	Ethyl nitrate

An rarraba BT4 azaman rukunin zazzabi na Class B, inda matsakaicin zafin jiki na na'urori masu ƙima da T4 bai wuce 135 ° C ba. CT4 yana riƙe da ƙimar fashewar Class C, kwatankwacin BT4, kuma ya dace da mahalli masu haɗari masu haɗari kamar hydrogen da acetylene, kiyaye matsakaicin zafin jiki na 135°C.

Iyakar Amfani

BT4 ya dace da iskar gas na yau da kullun ciki har da methane, ethane, man fetur, kuma hydrogen sulfide.

CT4 ya ƙunshi mafi girman kewayon ƙarancin gama gari m gas, kamar hydrogen da iskar gas a matakin CT1, acetylene a matakin CT2, da carbon disulfide a matakin CT4.