# ISO 9308-1:1990 — Withdrawn and superseded ISO standards

For ISO 9308-1:1990, item title is Water quality — Detection and enumeration of coliform organisms, thermotolerant coliform organisms and presumptive Escherichia coli — Part 1: Membrane filtration method; status code is 9599; successor is ISO 9308-1:2000; withdrawn / published date is 1990-09-20, recorded from its source on 2026-08-05.

- **Identifier:** ISO 9308-1:1990 _(verified: appears in the quote below)_
- **Item title:** Water quality — Detection and enumeration of coliform organisms, thermotolerant coliform organisms and presumptive Escherichia coli — Part 1: Membrane filtration method _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 9308-1:2000
- **Withdrawn / published date:** 1990-09-20 _(verified: appears in the quote below)_

## What the source says

> 16966,IS,,ISO 9308-1:1990,"Water quality — Detection and enumeration of coliform organisms, thermotolerant coliform organisms and presumptive Escherichia coli — Part 1: Membrane filtration method","Qualité de l'eau — Recherche et dénombrement des organismes coliformes, des organismes coliformes thermotolérants et des Escherichia coli présumés — Partie 1: Méthode de filtration sur membrane",1990-09-20,1,['07.100.20'],ISO/TC 147/SC 4,9599,,[26404],"['en','fr']",10,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).