द “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).
अवस्था कोटि | ग्याँस वर्गीकरण | प्रतिनिधि ग्यासहरू | न्यूनतम इग्निशन स्पार्क ऊर्जा |
---|---|---|---|
खानी अन्तर्गत | म | मिथेन | 0.280mJ |
खानी बाहिर कारखानाहरू | IIA | प्रोपेन | 0.180mJ |
IIB | इथिलीन | 0.060mJ | |
IIC | हाइड्रोजन | 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, एसिटिलीन, कार्बन डाइसल्फाइड, ethyl nitrate, and water gas. Those in the IIB category encompass ethylene, coke oven gas, propyne, र हाइड्रोजन sulfide. The IIA classification includes gases such as methane, ethane, बेन्जिन, र diesel.