EN ISO 15913:2003

Foreword
1 Scope
2 Normative references
3 Term, definition, abbreviations and subscripts
4 Principle
5 Interferences
6 Reagents
7 Apparatus
8 Sampling
9 Procedure
10 Calculation
11 Precision
12 Test report
Annex A (informative) Results of an interlaboratory trial
Annex B (informative) Further substances which may be
                      analysed by this procedure
Annex C (informative) Example of hydrolysis of phenoxyalkanoic
                      carbonic esters
Annex D (informative) Mass spectra for some phenoxyalkanoic
                      herbicides

This International Standard specifies a method for the determination of phenoxyalkanoic acids in ground anddrinking water in mass concentrations W 50 ng/l (detailed information is given in Table A.1 of annex A). Examplesof phenoxyalkanoic acids which can be determined by this method are given in Table 1.This method may be applicable to compounds not mentioned in Table 1 or to other types of water. However, it isnecessary to verify the applicability of this method for these special cases (see annex B).Table 1 — Plant treatment agents determined by this method