Shenhai Explosion-Proof
Qhov no “abc” nruab nrab yog cov roj classifications, qeb rau peb theem—IIA, IIB, thiab IIC—raws li qhov xyaum ua tej yam zoo tshaj plaws (MESG) los yog qhov tsawg kawg yog igniting tam sim no (MIC).
| Qeb | Roj Classification | Cov neeg sawv cev gases | Yam tsawg kawg yog Ignition spark zog |
|---|---|---|---|
| Nyob rau hauv lub mine | Kuv | methane | 0.280mJ |
| Factories sab nraum lub Mine | IIA | Propane | 0.180mJ |
| IIB | Ethylene | 0.060mJ | |
| IIC | hydrogen | 0.019mJ |
Ntawm no, IIC classification yog tswv lub hazardous feem ntau hazardous, IIB thiab IIA tom qab decreasing kev txiav txim uas yuav raug. Gases falling under the IIC classification include hydrogen, acetylene, disulfide, ethyl nitrate, and water gas. Those in the IIB category encompass ethylene, coke oven gas, propyne, Thiab hydrogen sulfide. The IIA classification includes gases such as methane, ethane, benzene, Thiab diesel.