DIN EN 12918:1999 水質(zhì).用二氯甲烷萃取分析法和氣相色譜分析法測定水中的對硫磷、甲基對硫磷和其它有機(jī)磷化合物
Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis; German version EN 12918:1999