Reference number
ISO 7393-2:1985
© ISO 2024
ISO 7393-2:1985
Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes
Edition 1
1985-10
Withdrawn
Withdrawn (Edition 1, 1985)

Abstract

Specifies a procedure for water, readily applicable to field testing; it is based on measurement of the colour intensity by visual comparison of the colour with a scale of standards which is regularly calibrated. Sea water and waters containing bromides and iodides comprise a group for which special procedures are required. The procedure is applicable to concentrations, in terms of chlorine, from 0,000 4 to 0,07 mmol/l total chlorine and at higher concentrations by dilution of samples. Interferences of the procedure are noted.

General information

  • Status
     : Withdrawn
    Publication date
     : 1985-10
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 1
    Number of pages
     : 8
  • Technical Committee :
    ISO/TC 147/SC 2
    ICS :
    13.060.50 
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