EN ISO 10695:2000

Foreword
1 Scope
2 Normative references
3 Liquid/liquid extraction
   3.1 Principle
   3.2 Reagents
   3.3 Apparatus
   3.4 Sampling and sample preparation
   3.5 Procedure
4 Liquid/solid extraction
   4.1 Principle
   4.2 Reagents
   4.3 Apparatus
   4.4 Sampling
   4.5 Procedure (for RP-C18 material)
5 Calibration
   5.1 General
   5.2 Calibration using external standards
   5.3 Calibration using an internal standard
6 Identification and calculation
   6.1 Identification of individual compounds
   6.2 Calculation
   6.3 Summary of results
7 Expression of results
8 Test report
Annex A (informative) Detection limits of certain organic
        nitrogen and phosphorus compounds
Annex B (informative) Examples of gas chromatograms
Annex C (informative) Characteristic ions for mass
        spectrometry
Annex D (informative) Precision data for certain organic
        nitrogen and phosphorus compounds
        (liquid/solid extraction method)

Describes two methods for determining certain organic nitrogen and phosphorous compounds in waters by gas chromatography, which may be extended to include additional substances, provided the methods are validated for each individual case.