# ISO 4831:1978 — Withdrawn and superseded ISO standards

For ISO 4831:1978, item title is Microbiology — General guidance for the enumeration of coliforms — Most probable number technique at 30 degrees C; status code is 9599; successor is ISO 4831:1991; withdrawn / published date is 1978-08-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4831:1978 _(verified: appears in the quote below)_
- **Item title:** Microbiology — General guidance for the enumeration of coliforms — Most probable number technique at 30 degrees C _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4831:1991
- **Withdrawn / published date:** 1978-08-01 _(verified: appears in the quote below)_

## What the source says

> 10811,IS,,ISO 4831:1978,Microbiology — General guidance for the enumeration of coliforms — Most probable number technique at 30 degrees C,Microbiologie — Directives générales pour le dénombrement des coliformes — Technique du nombre le plus probable après incubation à 30 degrés C,1978-08-01,1,['07.100.30'],ISO/TC 34/SC 9,9599,,[10812],"['en','fr']",8,

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).