1. Awọn ohun elo itanna oriṣiriṣi jẹ ipin ti o da lori awọn ipele ailewu fun lilo ninu awọn bugbamu gaasi ibẹjadi, ti o pin si awọn agbegbe: Agbegbe 0, Agbegbe 1, ati Agbegbe 2.
2. Awọn classification ti gaasi tabi oru bugbamu awọn akojọpọ ṣubu si awọn ẹka mẹta: IIA, IIB, ati IIC. Iyasọtọ yii da lori aafo Ailewu ti o pọju adanwo (MESG) tabi Iwọn Iginisi ti o kere julọ (MICR).
3. Awọn otutu ikojọpọ fun igniting kan pato alabọde ti pin si orisirisi awọn sakani. Iwọnyi pẹlu T1: labẹ 450 ° C; T2: 300°C < T ≤ 450°C; T3: 200°C < T ≤ 300°C; T4: 135°C < T ≤200°C; T5: 100°C < T ≤ 135°C; T6: 85°C < T ≤ 100°C.