# ISO/IEC 9646-4:1991 — Withdrawn and superseded ISO standards

For ISO/IEC 9646-4:1991, item title is Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 4: Test realization; status code is 9599; successor is ISO/IEC 9646-4:1994; withdrawn / published date is 1991-07-11, recorded from its source on 2026-08-05.

- **Identifier:** ISO/IEC 9646-4:1991 _(verified: appears in the quote below)_
- **Item title:** Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 4: Test realization _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO/IEC 9646-4:1994
- **Withdrawn / published date:** 1991-07-11 _(verified: appears in the quote below)_

## What the source says

> 17479,IS,,ISO/IEC 9646-4:1991,Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 4: Test realization,Technologies de l'information — Interconnexion de systèmes ouverts — Essais de conformité — Méthodologie générale et procédures — Partie 4: Réalisation des outils de test,1991-07-11,1,['35.100.01'],ISO/IEC JTC 1,9599,,[17480],"['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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).