BS EN 12918:1999

This standard BS EN 12918:1999 Water quality. Determination of parathion, parathion-methyl and some other organophosphorus compounds in water by dichloromethane extraction and gas chromatographic analysis is classified in these ICS categories:

• 13.060.50 Examination of water for chemical substances

This European Standard specifies the extraction processes and gas chromatographic (GC) methods for determining parathion, parathion-methyl and some other organophosphorus compounds in drinking waters, surface waters and waste waters. This standard may also be suitable for the determination of other organic compounds. The range is dependent on the compound and the source of water and is typically up to 1 ug/l with a reporting limit of 0,001 ug/l for drinking waters involving a 1 000 to 1 extraction ratio.