Tha an “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).
Roinn-seòrsa staid | Seòrsachadh gas | Gasan riochdaire | Ignition Spark Energy as ìsle |
---|---|---|---|
Fon Mèinn | mi | Meatan | 0.280mJ |
Factaraidhean Taobh a-muigh na Mèinn | IIA | Propane | 0.180mJ |
IIB | Eitilein | 0.060mJ | |
IIC | Hydrogen | 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, acetylene, carbon disulfide, ethyl nitrate, and water gas. Those in the IIB category encompass ethylene, coke oven gas, propyne, agus haidridean sulfide. The IIA classification includes gases such as methane, ethane, beinséin, agus diesel.