Kini Ipele Imudaniloju Imudaniloju Ga julọ, BT5 tabi BT4

Iwọn-ẹri bugbamu BT5 ni a gba pe o ga.

Kilasi Ati Ipele	Iginisonu otutu Ati Group
-	T1	T2	T3	T4	T5	T6
-	T 450	450≥T 300	300≥T 200	200≥T 135	135≥T 100	100≥T：85
I	Methane
IIA	Ethane, Propane, Acetone, Phenethyl, Eni, Aminobenzene, Toluene, Benzene, Amonia, Erogba Monoxide, Ethyl acetate, Acetic Acid	Butane, Ethanol, Propylene, Butanol, Acetic Acid, Butyl Ester, Amyl Acetate Acetic Anhydride	Pentaneni, Hexane, Heptane, Decane, Octane, petirolu, Hydrogen Sulfide, Cyclohexane, petirolu, Kerosene, Diesel, Epo ilẹ	Eteri, Acetaldehyde, Trimethylamine		Ethyl nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke adiro Gaasi	Iposii Z-Alkane, Iposii Propane, Butadiene, Ethylene	Dimethyl Eteri, Isoprene, Hydrogen Sulfide	Diethylether, Dibutyl Eteri
IIC	Gaasi Omi, Hydrogen	Acetylene			Erogba Disulfide	Ethyl iyọ

Gbogbo awọn sipo ti wa ni iwon ni IIB ipele. Sibẹsibẹ, Ohun elo T4 ni opin iwọn otutu ti o pọju ti 135°C, nigbati T5 ẹrọ ti wa ni opin si 100°C. Awọn iwọn otutu oju ti o pọju tọkasi aabo ti o tobi julọ. Bayi, ẹrọ ibamu pẹlu BT5 awọn ajohunše jẹ tun ni ibamu pẹlu BT4, ṣugbọn yiyipada ko waye.