BS EN 12918:1999(2008)*BS 6068-2.67:1999 Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis
1999BS EN 12918:1999(2008)*BS 6068-2.67:1999 Water quality - Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis
1999BS EN 12918:1999 Water quality. Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis