Shenxay portlashdan himoyalangan
IIC ning portlashdan himoyalangan tasnifi ustun hisoblanadi, IIB va IIA uchun talablarni o'z ichiga oladi, IIB bilan IIAdan yuqori baholangan.
| Vaziyat toifasi | Gaz tasnifi | Reprezentativ gazlar | Minimal yonish uchqun energiyasi |
|---|---|---|---|
| Kon ostida | I | Metan | 0.280mJ |
| Kondan tashqaridagi zavodlar | IIA | Propan | 0.180mJ |
| IIB | Etilen | 0.060mJ | |
| IIC | Vodorod | 0.019mJ |