ISO/TC 147 Wasserbeschaffenheit,
ISO/TC 147 Water quality,
ISO/TC 147 Qualité de l'eau,
ISO Internationale Organisation für Normung,
ISO International Organization for Standardization,
ISO Organisation Internationale de Normalisation
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Media type:
Standard
Title:
ISO 6703-1
:
Water quality - Determination of cyanide - Part 1: Determination of total cyanide
Other titles:
Wasserbeschaffenheit - Bestimmung von Cyanid - Teil 1: Bestimmung des Gesamtcyanids
Qualité de l'eau; Dosage des cyanures - Partie 1: Dosage des cyanures totaux
Description:
The three methods specified are applicable to water containing less than 100 mg per litre, but higher concentrations may be determined by suitable dilution of the sample. The methods suitable and corresponding ranges are as follows: photometric method with pyridine/barbituric acid: 0,002 to 0,025 mg; titrimetric method using the tyndall effect: > 0,005 mg; titrimetric method using an indicator: > 0,05 mg. Ions and compounds interfering with the determination are listed in table 1.