T4 yog ib qhov kub classifications. Qhov optimal tshaj plaws yog T6, Thaum T1 yog qhov tsawg tshaj 00 desirable.
Cov hluav taws xob hluav taws xob | Qhov chaw uas muaj hluav taws xob (°C) | Roj/vapor ignition kub (°C) | Siv ntau ntau yam kub |
---|---|---|---|
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 | T6 |
tshwj xeeb tshaj yog, Pab pawg neeg T4 yog categorized los muaj ib qhov kub tshaj plaws ntawm ≤135°C.