Uas yog ib tug muaj cov explosion-Proof theem, BT4 LOS YOG CT4

Tus tawg-profification ntawm CT4 khoom surpasses tias BT4 khoom.

Hoob Kawm thiab Qib Kawm	Ignition kub thiab pab pawg neeg
-	T1	T2	T3	T4	T5	T6
-	T>450	450≥T>300	300≥T>200	200≥T>135	135≥T>100	100≥T>85
Kuv	methane
IIA	Ethane, Propane, acetone, Phenethyl, Ene, Aminobenzene, Toluene, Benzene, ammonia, Carbon Monoxide, Ethyl Acetate, Acetic Acid	Tiam sisane, Ethanol, Propylene, Tiam sisanol, Acetic Acid, Tiam sis Ester, Amyl Acetate Acetic Anhydride	hnub, Hexane, Heptane, Decane, Octane, roj av, Hydrogen Sulfide, Cyclohexane, roj av, roj a., Diesel, Petroleum	ether, Acetaldehyde, Trimethylamine		Ethyl Nitrite
IIB	Propylene, Acetylene, Cyclopropane, Coke Oven Roj	Epoxy Z-Alkane, Epoxy Propane, Butadiene, Ethylene	Dimethyl Ether, Isoprene, Hydrogen Sulfide	Diethylether, Dibutyl Ether
IIC	roj, hydrogen	Acetylene			Carbon Disulfide	Ethyl Nitrate

BT4 yog classified ua ib hoob kawm B kub pab pawg neeg, Qhov twg qhov kub tshaj plaws ntawm T4-nyob li tsis tshaj 135°C. CT4 tuas ib hoob kawm C tawg-pov thawj ntsuam xyuas, piv txwv, thiab tsim nyog rau tej chaw uas hazardous gases xws li hydrogen thiab acetylene, tswj qhov kub tshaj plaws ntawm 135°C.

Tau Siv Cov Tshuaj

BT4 yog suitable rau hom gases xws li methane, ethane, roj av, Thiab hydrogen sulfide.

CT4 encompasses ib nrug ntau hom tsawg dua explosive nkev, Xws li hydrogen thiab dej roj ntawm lub CT1 theem, acetylene ntawm tus CT2 theem, thiab carbon disulfide nyob rau theem CT4.