Determination of extractable perfluorooctanesulfonate (PFOS) in coated and impregnated solid articles, liquids and fire fighting foams – Method for sampling, extraction and analysis by LC-qMS or LC-tandem/MS; German version CEN/TS 15968:2010
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2010
