Kedu ebe mgbawa bụ DIIBT4

Nhazi dIIBT4 na-ezo aka na Klas II, Ogo mgbawa nke otu B.

II	B	T4	Gb	IP64
Nkem I	Methane	T1 450 ℃	Ma Nchekwa dị oke elu	IP64
		T2 300 ℃
			Mb Nchekwa ọkwa dị elu
		T3 200 ℃
M Ngwa dị n'elu	Propane		Ga Nchekwa dị oke elu
		T4 135 ℃
	Ethylene		Gb Nchekwa ọkwa dị elu
		T5 100 ℃
	Hydrogen, Acetylene		Gc Nchekwa ọkwa izugbe
		T6 85 ℃

Prefix ‘d’ na-egosi ụdị mkpuchi ọkụ, emebere ka ihe mgbawa ọ bụla dị n'ime wee nọrọ na-emebighị ihe mkpuchi ahụ ma gbochie mgbasa nke mgbawa n'èzí;

IIB na-akọwapụta ụdị gas eji arụ ọrụ;

T4 na-egosi na elu ngwaahịa kachasị okpomọkụ na-anọ n'okpuru 130 ° C.