Ipi Ina Kiwango cha Juu cha Uthibitisho wa Mlipuko, BT4 au CT4

Uainishaji usioweza kulipuka wa vifaa vya CT4 unapita ule wa vifaa vya BT4.

Darasa na Kiwango	Joto la Kuwasha na Kikundi
-	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, Asetoni, Phenethyl, Ene, Aminobenzene, Toluini, Benzene, Amonia, Monoxide ya kaboni, Acetate ya Ethyl, Asidi ya Acetiki	Butane, Ethanoli, Propylene, Butanol, Asidi ya Acetiki, Butyl Ester, Amyl Acetate Asetiki anhidridi	Pentane, Hexane, Heptane, Decane, Octane, Petroli, Sulfidi ya hidrojeni, Cyclohexane, Petroli, Mafuta ya taa, Dizeli, Mafuta ya petroli	Etha, Acetaldehyde, Trimethylamine		Ethyl Nitrite
IIB	Propylene, Asetilini, Cyclopropane, Gesi ya Oveni ya Coke	Epoxy Z-Alkane, Propane ya Epoxy, Butadiene, Ethilini	Etha ya Dimethyl, Isoprene, Sulfidi ya hidrojeni	Diethylether, Etha ya Dibutyl
IIC	Gesi ya Maji, Haidrojeni	Asetilini			Disulfidi ya kaboni	Nitrati ya ethyl

BT4 imeainishwa kama kundi la halijoto la Hatari B, ambapo joto la juu la uso la vifaa vilivyokadiriwa T4 halizidi 135°C. CT4 ina alama ya daraja C isiyoweza kulipuka, kulinganishwa na BT4, and is suitable for environments with hazardous gases such as hydrogen and acetylene, maintaining a maximum surface temperature of 135°C.

Scope of Use

BT4 is suitable for common gases including methane, ethane, mafuta ya petroli, na hidrojeni sulfide.

CT4 encompasses a broader range of less common kulipuka gesi, such as hydrogen and water gas at the CT1 level, acetylene at the CT2 level, and carbon disulfide at the CT4 level.