A.α=1.4 B.α=1.05~1.15 C.α=0.8~0.9 D.α=0.4~0.5
A.α≥1.4 B.α=1.05~1.15 C.α=0.8~0.9 D.α<0.4~0.5
A.霧化性 B.抗爆性 C.壓縮性 D.可燃性