EN ISO 19340:2017

European foreword
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Interferences
5 Principle
6 Reagents
7 Apparatus
8 Quality requirements
9 Sampling and sample pre-treatment
10 Procedure
11 Calculation
12 Expression of results
13 Test report
Annex A (normative) - Elimination of dissolved sulfate,
        chloride, hydrogen carbonate, carbonate and metals
Annex B (normative) - Determination of perchlorate
        using inline matrix elimination and applying
        re-injection analysis
Annex C (normative) - Determination of perchlorate
        using inline matrix elimination and concentration
        applying two-dimensional ion chromatography (2DIC)
Annex D (informative) - Performance data
Bibliography

ISO 19340:2017 specifies a method for the determination of dissolved perchlorate in water (e.g. drinking water, mineral water, raw water, surface water, partially treated water or swimming pool water, waste water from drinking/swimming pool water treatment plants).Appropriate pre-treatment of the sample (e.g. matrix elimination) allows a direct determination of perchlorate ≥ 1 µg/l.The working range is restricted by the ion-exchange capacity of the separator column. Dilution of the sample to the working range can be necessary.