Isho ukuthini I-Explosion-Proof Level AT4

A: Igesi ye-propane iyisibonelo sezindawo ze-Class A.

Ikilasi Nezinga	Ignition Temperature And 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	I-Methane
IIA	Ethane, I-Propane, I-acetone, I-Phenethyl, Ene, I-aminobenzene, I-Toluene, Benzeni, I-Amoniya, I-Carbon monoxide, I-Ethyl Acetate, I-Acetic Acid	Butane, I-Ethanol, Ipropylene, I-Butanol, I-Acetic Acid, Butyl Ester, I-Amyl Acetate Acetic Anhydride	I-Pentane, I-Hexane, I-Heptane, I-Decane, I-Octane, Uphethiloli, I-Hydrogen sulfide, I-Cyclohexane, Uphethiloli, Uphalafini, Udizili, Uwoyela	I-Ether, I-acetaldehyde, I-Trimethylamine		I-Ethyl Nitrite
IIB	Ipropylene, I-acetylene, I-Cyclopropane, I-Coke Oven Gas	I-Epoxy Z-Alkane, I-Epoxy Propane, I-Butadiene, I-Ethylene	I-Dimethyl Ether, I-isoprene, I-Hydrogen sulfide	I-Diethylether, I-Dibutyl Ether
I-IIC	Igesi Yamanzi, I-hydrogen	I-acetylene			I-Carbon Disulfide	I-Ethyl Nitrate

T4: Igama elithi ‘T’ libonisa izinga lokushisa, ihlukaniswe yaba amazinga ayisithupha. I-T4 icacisa ukuthi izinga lokushisa eliphezulu lemishini aleqi ku-135°C.