# ISO/IEC 9646-2:1991 — Withdrawn and superseded ISO standards For ISO/IEC 9646-2:1991, item title is Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 2: Abstract test suite specification; status code is 9599; successor is ISO/IEC 9646-2:1994; withdrawn / published date is 1991-07-18, recorded from its source on 2026-08-05. - **Identifier:** ISO/IEC 9646-2:1991 _(verified: appears in the quote below)_ - **Item title:** Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 2: Abstract test suite specification _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 9646-2:1994 - **Withdrawn / published date:** 1991-07-18 _(verified: appears in the quote below)_ ## What the source says > 17475,IS,,ISO/IEC 9646-2:1991,Information technology — Open Systems Interconnection — Conformance testing methodology and framework — Part 2: Abstract test suite specification,Technologies de l'information — Interconnexion de systèmes ouverts — Essais de conformité — Méthodologie générale et procédures — Partie 2: Spécification des suites de tests abstraites,1991-07-18,1,['35.100.01'],ISO/IEC JTC 1,9599,,[17476],"['en','fr']",28, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).