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ISO 10695:2000

Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods
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ISO 10695:2000

Water quality -- Determination of selected organic nitrogen and phosphorus compounds -- Gas chromatographic methods

PUBLISH DATE 2000
ISO 10695:2000

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
Name Molecular formula Molar mass CAS No.a
Atrazine C8H14ClN5 215,7 001912-24-9
Cyanazine C9H13ClN6 240,7 021725-46-2
Metazachlor C14H16ClN3O 277,8 067129-08-2
Parathion (ethyl) C10H14NO5PS 291,3 00056-38-2
Parathion (methyl) C8H10NO5PS 263,2 298-00-0
Pendimethalin C13H19N3O4 281,3 040487-42-1
Propazine C9H16ClN5 229,7 000139-40-2
Sebuthylazine C9H16ClN5 229,7 007286-69-3
Simazine C7H12ClN5 201,7 000122-34-9
Terbuthylazine C9H16ClN5 229,7 005915-41-3
Trifluralin C13H16F3N3O4 335,3 001582-09-8
Vinclozolin C12H9Cl2NO3 286,1 050471-44-8
a Chemical Abstracts Registry Number.
SDO ISO: International Organization for Standardization
Document Number ISO 10695
Publication Date April 1, 2000
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 147/SC 2
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