# ISO 21528-1:2004 — Withdrawn and superseded ISO standards

For ISO 21528-1:2004, item title is Microbiology of food and animal feeding stuffs — Horizontal methods for the detection and enumeration of Enterobacteriaceae — Part 1: Detection and enumeration by MPN technique with pre-enrichment; status code is 9599; successor is ISO 21528-1:2017; withdrawn / published date is 2004-08-16, recorded from its source on 2026-08-05.

- **Identifier:** ISO 21528-1:2004 _(verified: appears in the quote below)_
- **Item title:** Microbiology of food and animal feeding stuffs — Horizontal methods for the detection and enumeration of Enterobacteriaceae — Part 1: Detection and enumeration by MPN technique with pre-enrichment _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21528-1:2017
- **Withdrawn / published date:** 2004-08-16 _(verified: appears in the quote below)_

## What the source says

> 34565,IS,,ISO 21528-1:2004,Microbiology of food and animal feeding stuffs — Horizontal methods for the detection and enumeration of Enterobacteriaceae — Part 1: Detection and enumeration by MPN technique with pre-enrichment,Microbiologie des aliments — Méthodes horizontales pour la recherche et le dénombrement des Enterobacteriaceae — Partie 1: Recherche et dénombrement à l'aide de la technique NPP avec préenrichissement,2004-08-16,1,['07.100.01'],ISO/TC 34/SC 9,9599,"[11619,15749,14123]",[55228],"['en','fr']",12,"<p>ISO 21528-1:2004 specifies a method, with pre-enrichment, for the detection of Enterobacteriaceae. It is applicable to products intended for human consumption and the feeding of

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).