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滤膜测尘法,是我国目前工矿企业及隧道施工中生产性粉尘测定的主要方法。但是,由于滤膜法所用的采样工具不够紧凑和抽气动力存在一定问题等原因,故采样时比较麻烦,井下虽有电源和压气等动力,但采用抽气机,必须携带变压器(因井下照明电压为36伏,动力电压为380伏,抽气机则用
Membrane dust detection method is the main method for the determination of productive dust in industrial and mining enterprises and tunnel construction in China. However, due to the sampling method used by the filter method is not compact and pumping power there are some problems and other reasons, so the sample is too much trouble, although the underground power and pressure and other power, but the use of suction machine, you must bring the transformer (due to downhole lighting The voltage is 36 volts, the power voltage is 380 volts, and the air extractor is used