Explosive atmospheres - Part 29-1: gas detectors - Performance requirements of detectors for flammable gases.

爆炸性环境。第29- 1部分：气体探测器。易燃气体探测器的性能要求。

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Methane is an inflammable and explosive gas and a major constituent of mine atmospheres, natural gas and gas fuels.

甲烷是易燃易爆气体，是矿井瓦斯及天然气等多种气体燃料的主要成分。

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Methane is an inflammable and explosive gas and a major constituent of mine atmospheres, natural gas and gas fuels.

甲烷是易燃易爆气体，是矿井瓦斯及天然气等多种气体燃料的主要成分。

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