GB/T 39193-2020 Translated English of Chinese Standard. (GBT 39193-2020, GB/T39193-2020, GBT39193-2020): Ambient air - Determination of particulate matter mass concentration - Gravimetric methodThis Standard specifies the method of filter membrane sampling and weighing for the determination of particulate matter in ambient air, including principle and method, instruments and equipment, sampling and weighing, calculation and presentation of results, uncertainty evaluation of measurement results, quality control and quality assurance. This Standard applies to the use of filter membrane weighing method to measure the particulate matter mass concentration in ambient air. |
Common terms and phrases
according to formula air tightness ambient air arithmetic mean atmospheric pressure balance and weighing blank filter membrane calculate the flow checked regularly Connect the standard constant-temperature and humidity cubic meter µg/m3 different load pressures division value electronic balance exceed 1 L/min expanded uncertainty filter membrane balance filter membrane treatment filter membrane weighing flow method flow rate deviation flow rate indication flow rate measurement flow rate repeatability gravimetric method humidity equipment hygrometer instruments and equipment kilopascals leakage rate liters per minute low-pressure method matter mass concentration maximum allowable error measurement results measurement uncertainty membrane for sampling Method for checking micrograms per cubic micrograms µg minute L/min nominal flow rate particulate matter mass 𝑄 Qingdao quality control rate indication error RECORD the sampling results are distributed sampling and weighing sampling flow rate sampling port sampling volume standard filter membrane standard flowmeter temperature and humidity Uncertainty evaluation verification certificate weighing results Zhejiang