1, and the explosion zero point refers to the proportion of mixed gases (such as gas and air) that are most suitable for explosion. When the concentration of mixed gas exceeds the explosion zero point, any tiny spark or flame may cause an explosion. Therefore, it is very important to know the explosion zero point so as to take necessary safety measures in the mine.
2, gas zero refers to the proportion of the lowest gas concentration, namely the proportion of gas concentration is zero. When the gas concentration exceeds zero, the gas in the mine may cause an explosion. Therefore, it is also very important to know the gas zero point, so as to take necessary safety measures in the mine.