ISO 7875-2:1984Published

Water quality — Determination of surfactants — Part 2: Determination of non-ionic surfactants using Dragendorff reagent

Qualité de l'eau — Dosage des agents de surface — Partie 2: Dosage des agents de surface non ioniques à l'aide du réactif de Dragendorff

Abstract / scope

Applies to the determination of low concentrations of bismuth active substances. The method is suitable for influents and effluents of sewage treatment plants and waste water. When investigating surface waters it may be necessary to handle large sample volumes.