# ISO 6771:1981 — Withdrawn and superseded ISO standards For ISO 6771:1981, item title is Aerospace construction — Fluid systems and components — Pressure and temperature classifications; status code is 9599; successor is ISO 6771:1987; withdrawn / published date is 1981-07-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6771:1981 _(verified: appears in the quote below)_ - **Item title:** Aerospace construction — Fluid systems and components — Pressure and temperature classifications _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6771:1987 - **Withdrawn / published date:** 1981-07-01 _(verified: appears in the quote below)_ ## What the source says > 13265,IS,,ISO 6771:1981,Aerospace construction — Fluid systems and components — Pressure and temperature classifications,Constructions aérospatiales — Systèmes hydrauliques et leurs composants — Classification des températures et pressions,1981-07-01,1,['49.080'],ISO/TC 20/SC 10,9599,,[13266],"['en','fr']",1, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).