Ndeipi Kuputika-Chiratidzo Chinhanho Chiri Pamusoro, BT4 kana CT6

Iyo BT4 Model inoiswa pasi pekuputika-chiratidzo blus b ne tembiricha yeT4, stipulating that the equipment’s surface temperature cannot exceed 135°C.

Kirasi Uye Level	Ignition Temperature Uye Boka
-	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, 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, peturu, Hydrogen sulfide, Cyclohexane, peturu, Parafini, Diesel, Petroleum	Ether, Acetaldehyde, Trimethylamine		Ethyl Nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke Oven Gasi	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	Dimethyl Ether, Isoprene, Hydrogen sulfide	Diethylether, Dibutyl Ether
IIC	Gasi remvura, Hydrogen	Acetylene			Carbon Disulfide	Ethyl nitrate

Zvakasiyana, Iyo CT6 modhi inobata kirasi c kuputika-yehupuro chiyero, covering the requirements of BT4 and applicable to zones with dangerous gases like hydrogen and acetylene. T6 equipment must maintain a surface temperature no higher than 85°C.

Pane zve tembiricha mapoka, T6 represents the highest safety level, suggesting that a lower equipment surface temperature is preferable.

Semagumo, CT6 possesses a superior explosion-proof classification.