Kev tawg-pov thawj T4 kub

T4 yog ib qho kev ntsuas kub. Qhov zoo tshaj plaws yog T6, thaum T1 yog qhov xav tau tsawg tshaj plaws.

Kub pawg ntawm cov khoom siv hluav taws xob	Qhov siab tshaj plaws qhov kub thiab txias ntawm cov khoom siv hluav taws xob (℃)	Gas / vapor ignition kub (℃)	Qhov ntsuas kub ntawm cov cuab yeej siv tau
T1	450	450	T1 ~ T6
T2	300	＞ 300	T2 ~ T6
T3	200	200	T3 ~ T6
T4	135	135	T4 ~ T6
T5	100	＞ 100	T5 ~ T6
T6	85	85; ib	T6

Tshwj xeeb, Pawg T4 yog categorized los ntawm qhov muaj qhov siab tshaj plaws ntawm qhov kub ntawm ≤135 ° C.