ISO 9297:1989Published

Water quality — Determination of chloride — Silver nitrate titration with chromate indicator (Mohr's method)

Qualité de l'eau — Dosage des chlorures — Titrage au nitrate d'argent avec du chromate comme indicateur (Méthode de Mohr)

Abstract / scope

The method specified is applicable to the direct determination of dissolved chloride in concentrations between 5 mg/l and 150 mg/l. The working range may be extended to 400 mg/l by using a burette of larger capacity or by sample dilution. Due to many interferences the method is not applicable to heavily polluted waters of low chloride content.