# ISO/IEC Guide 28:2004 — Withdrawn and superseded ISO standards

For ISO/IEC Guide 28:2004, item title is Conformity assessment — Guidance on a third-party certification system for products; status code is 9599; successor is ISO/IEC NP Guide 28 | ISO/IEC TR 17026:2015; withdrawn / published date is 2004-09-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC Guide 28:2004 _(verified: appears in the quote below)_
- **Item title:** Conformity assessment — Guidance on a third-party certification system for products _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC NP Guide 28 | ISO/IEC TR 17026:2015
- **Withdrawn / published date:** 2004-09-11 _(verified: appears in the quote below)_

## What the source says

> 38291,GUIDE,,ISO/IEC Guide 28:2004,Conformity assessment — Guidance on a third-party certification system for products,Évaluation de la conformité — Lignes directrices pour un système type de certification des produits par une tierce partie,2004-09-11,2,['03.120.20'],ISO/CASCO,9599,[19737],"[62812,63132]","['en','fr']",19,"<p>ISO/IEC Guide 28:2004 gives general guidelines for a specific product certification system.</p><p>It is applicable to a third-party product certification system for determining the conformity of a product with specified requirements through initial testing of samples of the product, assessment and surveillance of the involved quality system, and surveillance by testing

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).