This International Standard specifies a general method for the determination of volatile organic compounds
(VOCs) in water by purge-and-trap isolation and gas chromatography (GC). Annexes A, B and C provide
examples of analytes that can be determined using this International Standard. They range from
difluorodichloromethane (R-12) up to trichlorobenzene, including all non-polar organic compounds of
intermediate volatility.
Detection is preferably carried out by mass spectrometry in the electron impact mode (EI), but other detectors
may be applied as well.
The limit of detection largely depends on the detector in use and the operational parameters. Typically
detection limits as low as 10 ng/l1) can be achieved. The working range typically is up to 100 g/l.
This International Standard is applicable to drinking water, ground water, surface water, seawater and to
(diluted) waste water.
Diese Internationale Norm legt ein allgemeines Verfahren zur Bestimmung flüchtiger organischer Verbindungen (VOC) in Wasser nach Purge- und Trap-Anreicherung und Gaschromatographie (GC) fest. Die Anhänge D, E und F enthalten Beispiele für Analyten, die nach diesem Verfahren bestimmbar sind. Das Verfahren umfasst alle nichtpolaren organischen Verbindungen, deren Flüchtigkeit zwischen Difluordichlormethan und Trichlorbenzol liegt.