# ISO 7393-2:1985 — Withdrawn and superseded ISO standards

For ISO 7393-2:1985, item title is Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes; status code is 9599; successor is ISO 7393-2:2017; withdrawn / published date is 1985-10-24, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7393-2:1985 _(verified: appears in the quote below)_
- **Item title:** Water quality — Determination of free chlorine and total chlorine — Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7393-2:2017
- **Withdrawn / published date:** 1985-10-24 _(verified: appears in the quote below)_

## What the source says

> 14106,IS,,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","Qualité de l'eau — Dosage du chlore libre et du chlore total — Partie 2: Méthode colorimétrique à la N,N-diéthylphénylène-1,4 diamine destinée aux contrôles de routine",1985-10-24,1,['13.060.50'],ISO/TC 147/SC 2,9599,,[65560],"['en','fr']",8,"<p>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 io

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).