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在我国煤矿中粉尘浓度的测定一般是采用滤膜计重测尘法。这种测尘法,首先必须有专用仪器,其次需专人测定(测尘人员需经培训)。另外,用测尘仪测定粉尘,测尘时间一般为10～15分钟,这样测出的粉尘浓度往往带有很大的随机性。为了更简单方便的测定粉尘,我们摸索出一种用劳卫牌武安301型防尘口罩测定工作面粉尘浓度的方法。
Dust concentration in coal mines in China is generally measured by the filter weight measurement method. This method of dust measurement, first of all have to have special equipment, followed by the determination of someone (dust measurement personnel to be trained). In addition, the dust with a dust meter, dust measurement time is generally 10 to 15 minutes, so the measured dust concentration is often with a lot of randomness. In order to more simple and convenient determination of dust, we worked out a method of using Laowei Wu An 301 dust masks to measure the concentration of dust on the working face.