# ISO/TR 8509:1987 — Withdrawn and superseded ISO standards For ISO/TR 8509:1987, item title is Information processing systems — Open Systems Interconnection — Service conventions; status code is 9599; successor is ISO/IEC 10731:1994; withdrawn / published date is 1987-09-03, recorded from its source on 2026-08-05. - **Identifier:** ISO/TR 8509:1987 _(verified: appears in the quote below)_ - **Item title:** Information processing systems — Open Systems Interconnection — Service conventions _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/IEC 10731:1994 - **Withdrawn / published date:** 1987-09-03 _(verified: appears in the quote below)_ ## What the source says > 15732,TR,,ISO/TR 8509:1987,Information processing systems — Open Systems Interconnection — Service conventions,Systèmes de traitement de l'information — Interconnexion de systèmes ouverts — Conventions de service,1987-09-03,1,['35.100.01'],ISO/IEC JTC 1,9599,,[18824],"['en','fr']",9, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).