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BSI 21/30424859 DC:2021 Edition

BSI 21/30424859 DC:2021 Edition

$13.70

BS EN ISO 10304-4. Water quality. Determination of dissolved anions by liquid chromatography of ions – Part 4. Determination of chlorate, chloride and chlorite in water with low contamination

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BSI 2021 23
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This document specifies a method for the determination of the dissolved anions chlorate, chloride, and chlorite in water with low contamination (e.g. drinking water, raw water or swimming pool water).

An appropriate pretreatment of the sample (e.g. dilution) and the use of a conductivity detector (CD), UV detector (UV) or amperometric detector (AD) make the working ranges given in Table 1 feasible.

Table 1
Working ranges of the analytical method
a

The working range is restricted by the ion-exchange capacity of the columns. Dilute the sample in to the working range, if necessary.

b

The minimum working range for chlorite of 0,05 mg/l was obtained using calibration checks, but the round robin trials (Annex A, Table A.4) showed that it is difficult to obtain this with sufficient accuracy. Thus great care shall be taken when working in the lower range of this method.

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BSI 21/30424859 DC
$13.70