Kedu ụdị ọnọdụ ọrụ ka a na-eji ọkwa ọkwa Bt4 mgbawa

Klas IIB dabara adaba maka gburugburu ebe ngwakọta ihe mgbawa nke gas na ikuku IIB na-eme.

Otu gas / otu okpomọkụ	T1	T2	T3	T4	T5	T6
IIA	Formaldehyde, toluene, methyl ester, acetylene, propane, acetone, acrylic acid, benzene, styrene, carbon monoxide, ethyl acetate, acetic acid, chlorobenzene, methyl acetate, chlorine	Methanol, ethanol, ethylbenzene, propanol, propylene, butanol, butyl acetate, amyl acetate, cyclopentane	Pentane, Pentanol, hexane, ethanol, heptane, octane, cyclohexanol, turpentine, efu, mmanụ ala (gụnyere mmanụ ụgbọala), mmanụ ụgbọala mmanụ, Pentanol tetrachloride	Acetaldehyde, trimethylamine		Ethyl nitrite
IIB	Propylene ester, dimethyl ether	Butadiene, epoxy propane, ethylene	Dimethyl ether, acrolein, hydrogen carbide
IIC	Hydrogen, mmiri gas	Acetylene			Carbon disulfide	Ethyl nitrate

A na-ekewa ọkwa mgbawa na ọkwa mbụ maka ngwuputa ihe na ọkwa nke abụọ maka ụlọ ọrụ. N'ime ọkwa nke abụọ, Nkewa sub-nkewa gụnyere IIA, IIB, na IIC, n'usoro nrịgo nke ike mgbawa: IIA < IIB < IIC. The 'T' category denotes okpomọkụ otu. 'T’ Rating pụtara na akụrụngwa na-ejigide ọnọdụ dị elu n'okpuru 135 ° C, na t6 ịbụ ezigbo nchekwa nchekwa, na-akwado maka dị ka ala dị elu dị ka o kwere mee.

N'ikpeazụ, Ezubere ngwaahịa a na-efe efe dị ka intrisically mma Ngwa eletriki, Ebumnuche maka iji ụgbọ elu na klaasị ebe ọnọdụ dị elu adịghị gafere 135 Celsius C.