Ew “abc” represents gas classifications, categorized into three levels—IIA, IIB, and IIC—according to the maximum experimental safe gap (MESG) or the minimum igniting current (MIC).
Kategoriya Rewşa | Dabeşkirina gazê | gazên nûnerê | Kêmtirîn Enerjiya Çirûska Ignition |
---|---|---|---|
Di bin The Mine | ez | Metan | 0.280mJ |
Factory Outside The Mine | IIA | Propane | 0.180mJ |
IIB | Ethylene | 0.060mJ | |
IIC | Hîdrojen | 0.019mJ |
Of these, the IIC classification is deemed the most hazardous, with IIB and IIA following in decreasing order of risk. Gases falling under the IIC classification include hydrogen, acetylen, karbon dîsulfîdê, ethyl nitrate, and water gas. Those in the IIB category encompass ethylene, coke oven gas, propyne, û hîdrojen sulfide. The IIA classification includes gases such as methane, etan, benzol, û diesel.