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ISO 7393-3:1990

Water quality — Determination of free chlorine and total chlorine — Part 3: Iodometric titration method for the determination of total chlorine ISO 7393-3:1990

Publication date:   May 31, 1990

General information

90.93 Standard confirmed   Apr 4, 2023

ISO

ISO/TC 147/SC 2 Physical, chemical and biochemical methods

International Standard

13.060.50   Examination of water for chemical substances

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Scope

Specifies a procedure for water. It is applicable for the measurement of concentrations, in terms of chlorine, from 0,01 to 0,21 mmol/l. The interfering substances are given. In annex B a procedure for direct titration is specified. It is usually applied to chlorine concentrations above 7 mol/l in treated drinking water.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7393-3:1986

NOW

PUBLISHED
ISO 7393-3:1990
90.93 Standard confirmed
Apr 4, 2023