Shenhai e fakamoʻoni fakaʻauha
ʻOku fakafaʻahinga ʻa e meʻangaue ki he fakamoʻoni ʻi he kalasi II ki he: Kalasi IIA, Kalasi IIB, mo e IIC fakakalasi. ʻOku muimui ʻa e fakafuofua ki ha fakahokohoko: IIC > IIB > IIA.
| Faʻahinga Tuʻú | Fakafaʻahinga ʻo e kasa | Ngaahi kasa fakafofonga | Siʻisiʻi taha Ignition fakatupu ivi |
|---|---|---|---|
| ʻI he malumalu ʻo ʻeku | I | Methane | 0.280mJ |
| Ngaahi meʻa ʻi tuʻa ʻi he ʻaʻaku | IIA | Kasa | 0.180mJ |
| IIB | Ethylene | 0.060mJ | |
| IIC | Fakapaaki ʻo e | 0.019mJ |
ʻOku feʻunga ʻa e detectors kasa ki he ngaahi tuʻunga ʻo e fakamoʻoni IIC ki he ngaahi kasa velangofua kotoa pe; neongo ia, IIB detectors ʻikai lava ke ʻiloʻi H2 (fakapaaki ʻo e ʻo e), C2H2 (acetylene), mo e CS2 (kaponi disulfide), ʻa ia ʻoku ʻulungaanga ʻaki ʻe he kalasi IIC.