Wanne Matakin Fashewa-Hujja Tafi Girma, CT1 ko CT4

Ana ɗaukar rarrabuwa-hujjar fashewar CT4 babba.

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

Duk an yi la'akari, kowace na'ura tana riƙe da ƙimar IIC, yana nuna daidaito a cikin wannan ma'aunin; duk da haka, Ana samun bambance-bambance a cikin rabe-raben yanayin zafin su: Na'urorin T6 suna da matsakaicin zafin jiki na 85°C, T4 na'urorin sun kai kololuwa a 135°C, kuma na'urorin T1 na iya kaiwa zuwa 450°C.

T4-ƙididdiga-ƙirar fashewar kayan aiki yana da daraja sosai kuma yana iya maye gurbin na'urori masu ƙima na T1. A zahiri, maye gurbin kayan aikin CT1 tare da CT4 a kowane aikace-aikacen yana tabbatar da aminci.