Full 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 g/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
a Chemical Abstracts Registry Number.
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

Product Details

Published: 04/01/2000 Number of Pages: 23File Size: 1 file , 210 KB Same As: BS EN ISO 10695:2000, BS EN ISO 10695:2000