《煤矿安全规程》修订前后对比目录第2页共97页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共97页第三章通风、瓦斯和煤尘爆炸防治································74第一节通风········································································74第二节瓦斯防治····································································93第三节瓦斯和煤尘爆炸防治···················································106第四章煤（岩）与瓦斯（二氧化碳）突出防治·················107第一节一般规定··································································108第二节区域综合防突措施······················································115第三节局部综合防突措施······················································121第四节冲击地压安全防护措施··················································137第六章防灭火·························································137第一节一般规定··································································137第二节井下火灾防治······························································143第三节井下火区管理····························································151第十一章监控与通信················································296第一节一般规定··································································296第二节安全监控··································································298第三节人员位置监测····························································309第四节通信与图像监视···························································309第二章通风和瓦斯、粉尘防治第三章通风、瓦斯和煤尘爆炸防治第一节通风第一节通风第3页共97页第2页共97页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第3页共97页第一百条井下空气成分必须符合下列要求：（一）采掘工作面的进风流中，氧气浓度不低于20%，二氧化碳浓度不超过0.5%。（二）有害气体的浓度不超过表1规定。表1矿井有害气体最高允许浓度名称最高允许浓度（%）一氧化碳CO0.0024氧化氮（换算成NO2）0.00025二氧化硫SO20.0005硫化氢H2S0.00066氨NH30.004瓦斯、二氧化碳和氢气的允许浓度按本规程的有关规定执行。矿井中所有气体的浓度均按体积的百分比计算。第一百三十五条井下空气成分必须符合下列要求：（一）采掘工作面的进风流中，氧气浓度不低于20%，二氧化碳浓度不超过0.5%。（二）有害气体的浓度不超过表4规定。表4矿井有害气体最高允许浓度名称最高允许浓度/%一氧化碳CO0.0024氧化氮（换算成NO2）0.00025二氧化硫SO20.0005硫化...
