2011HJ 618-2011 Determination of atmospheric articles PM and PM in ambient air by gravimetric method
HJ 618-2011(XG1-2018) The Gravimetric Method for Determination of PM10 and PM2.5 in Ambient Air "No. 1 Amendment" was changed to HJ 618-2011 Determination of atmospheric articles PM and PM in ambient air by gravimetric method .