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.