Tofauti Kati ya Kiwango cha Uthibitisho wa Mlipuko AT na CT

Madarasa A na C yanaashiria mahali ambapo nyenzo hatari huhifadhiwa, na ukadiriaji wa juu wa CT usio na mlipuko.

Kikundi cha gesi/joto	T1	T2	T3	T4	T5	T6
IIA	Formaldehyde, toluini, ester ya methyl, asetilini, propane, asetoni, asidi ya akriliki, benzene, styrene, monoksidi kaboni, acetate ya ethyl, asidi asetiki, klorobenzene, acetate ya methyl, klorini	Methanoli, ethanoli, ethylbenzene, propanoli, propylene, butanol, acetate ya butyl, acetate ya amyl, cyclopentane	Pentane, pentanol, hexane, ethanoli, heptane, oktani, cyclohexanol, tapentaini, naphtha, mafuta ya petroli (ikiwa ni pamoja na petroli), mafuta ya mafuta, pentanol tetrakloridi	Acetaldehyde, trimethylamine		Ethyl nitriti
IIB	Propylene ester, dimethyl etha	Butadiene, epoxy propane, ethilini	Dimethyl etha, akrolini, carbudi hidrojeni
IIC	Haidrojeni, gesi ya maji	Asetilini			Disulfidi ya kaboni	Nitrati ya ethyl

Nchini China, Daraja A kwa kawaida hujumuisha tovuti zilizo na propane, ilhali Daraja C linajumuisha maeneo yenye gesi kama hidrojeni na asetilini.