# ISO 17994:2004 — Withdrawn and superseded ISO standards

For ISO 17994:2004, item title is Water quality — Criteria for establishing equivalence between microbiological methods; status code is 9599; successor is ISO 17994:2014; withdrawn / published date is 2004-05-14, recorded from its source on 2026-08-05.

- **Identifier:** ISO 17994:2004 _(verified: appears in the quote below)_
- **Item title:** Water quality — Criteria for establishing equivalence between microbiological methods _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 17994:2014
- **Withdrawn / published date:** 2004-05-14 _(verified: appears in the quote below)_

## What the source says

> 31667,IS,,ISO 17994:2004,Water quality — Criteria for establishing equivalence between microbiological methods,Qualité de l'eau — Critères permettant d'établir l'équivalence de méthodes microbiologiques,2004-05-14,1,"['13.060.70','07.100.20']",ISO/TC 147/SC 4,9599,,[56617],"['en','fr']",18,<p>ISO 17994:2004 defines an evaluation procedure for comparing two methods intended for the detection or quantification of the same target group or species of microorganisms.</p><p>ISO 17994:2004 provides the mathematical basis for the evaluation of the average relative performance of two methods against chosen criteria of equivalence. </p><p>Any two enumeration methods based on counts (of colonies or pos

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).