Ob yam khoom no nyob li IIB rau tawg tiv thaiv, Txawv xwb nyob rau hauv lawv cov hoob kawm kub.
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 |
Cov designations T1 mus txog T6 denote qhov ntau pub rau cov khoom nyob rau hauv tej yam mob uas muaj nyob rau hauv tej yam mob, progressively decreasing. Kub muaj peevxwm kos npe rau kev ruaj ntseg dua kev ruaj ntseg.
tshwj xeeb tshaj yog, BT1 muaj ib nyuag tsawg tawg-pov thawj ntsuam xyuas piv rau BT4.