Quomodo inserere explosio-Probatur gradus

Explosive gas ambitus genere in tres gradus-A, B, et C-fundatur maximum experimentum tutum gap vel minimum ignitio current requiritur.

Classis et Level	Ignitio Temperature et Group
-	T1	T2	T3	T4	T5	T6
-	T＞450	450≥T＞300	300≥T＞200	200≥T＞135	135≥T＞100	100≥T＞85
ego	Methane
IIA	Ethane, Propane, Acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, Ammonia, Carbo carbonis monoxide, Ethyl Acetate, Acidum aceticum	Butane, Ethanol, Propylene, Butanol, Acidum aceticum, Butyl Ester, Amyl aceticum aceticum anhydride	Pentane, Hexane, Heptane, Decanus, Octane, Gasoline, Hydrogenium Sulfide, Cyclohexane, Gasoline, Kerosene, Diesel, Petroleum	Ether, Acetaldehyde, Trimethylamine		Ethyl Nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke Oven Gas	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	Dimethyl Ether, Isoprene, Hydrogenium Sulfide	Diethylether, Dibutyl Ether
IIC	Aqua Gas, Hydrogenium	Acetylene			Carbon Disulfide	Ethyl Nitrate

machinae in sex temperaturas generum ordinantur, vndique a T1 ad T6 *, maxime licet superficies temperatus determinari.