DIN EN 14907:2005 環(huán)境空氣質(zhì)量.懸浮顆粒物質(zhì)的PM2.5質(zhì)量部分的測定用標準重量分析測量方法
Ambient air quality - Standard gravimetric measurement method for the determination of the PM2,5 mass fraction of suspended particulate matter; English version of DIN EN 14907