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  • ISO
    ISO 10695:2000 Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods
    Edition: 2000
    $386.77
    / user per year

Content Description

This International Standard specifies two methods for the determination of certain organic nitrogen and phosphorus compounds in waters by gas chromatography (see Table 1).

The methods may be extended to include additional substances, provided the methods are validated for each individual case.

Clause 3 describes the liquid/liquid extraction method, which is applicable to samples of drinking waters, ground waters, surface waters and waste waters containing up to 0,05 g/l of suspended solids. In the presence of organic matter, suspended matter and colloids, interferences are more numerous and consequently the detection limits of this method can be higher.

Clause 4 describes the liquid/solid extraction method which is applicable to samples of ground water, surface water and drinking water containing mass concentrations of about ≥ 0,05 μg/l. Interferences occurring with the examination of some types of surface water can prevent the application of this method.

Detection limits are given for information in annex A.

Table 1 - Organic nitrogen and phosphorus compounds analysed by these methods
NameMolecular formulaMolar massCAS No.a
AtrazineC8H14ClN5215,7001912-24-9
CyanazineC9H13ClN6240,7021725-46-2
MetazachlorC14H16ClN3O277,8067129-08-2
Parathion (ethyl)C10H14NO5PS291,300056-38-2
Parathion (methyl)C8H10NO5PS263,2298-00-0
PendimethalinC13H19N3O4281,3040487-42-1
PropazineC9H16ClN5229,7000139-40-2
SebuthylazineC9H16ClN5229,7007286-69-3
SimazineC7H12ClN5201,7000122-34-9
TerbuthylazineC9H16ClN5229,7005915-41-3
TrifluralinC13H16F3N3O4335,3001582-09-8
VinclozolinC12H9Cl2NO3286,1050471-44-8
a Chemical Abstracts Registry Number.


About ISO

ISO, the International Organization for Standardization, brings global experts together to agree on the best way of doing things – for anything from making a product to managing a process. As one of the oldest non-governmental international organizations, ISO has enabled trade and cooperation between people and companies all over the world since 1946. The International Standards published by ISO serve to make lives easier, safer and better.
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