Quod unus habet superiorem explosio-Probatur Level, BT4 vel CT4

Explosio-probatio classificationis CT4 armorum superat apparatum BT4.

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

BT4 stat pro Classis B temperatus group, ubi maxima superficies temperaturas T4 aestimavit machinas 135°C . non excedit. CT4 tenet Classis C explosionis-probationis rating, comparari BT4, et ad ambitus cum vaporibus ancipitibus aptum est ut hydrogenii et acetylenae, tuendam maximam superficiem temperatus est CXXXV ° C *.

Usus harum

BT4 aptum est ad communes vapores inter methanum, ethane, petroleum, et hydrogenii sulfide.

CT4 latiori ambitu minus communi explosive gases, ut consectetuer felis et aqua in gradu CT1, acetylene in CT2 gradu, et carbo disulfide in CT4 gradu.