BS EN ISO 17943. Water quality. Determination of volatile organic compounds in water. Method using headspace solid-phase micro-extraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS) Water, Quality, Water testing, Sampling methods, Water resources, Water pollution, Industrial water pollutants, Chemical water pollutants, Biological water pollutants, Effluents (sewage), Sludge, Sediment, Experimental design, Flow measurement, Sampling equipment, Samples, Test specimens