# ISO 2678-1:1977 — Withdrawn and superseded ISO standards For ISO 2678-1:1977, item title is Environmental tests for aircraft equipment — Part 1: Insulation resistance and high voltage tests for electrical equipment; status code is 9599; successor is ISO 2678:1985; withdrawn / published date is 1977-12-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 2678-1:1977 _(verified: appears in the quote below)_ - **Item title:** Environmental tests for aircraft equipment — Part 1: Insulation resistance and high voltage tests for electrical equipment _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2678:1985 - **Withdrawn / published date:** 1977-12-01 _(verified: appears in the quote below)_ ## What the source says > 7644,IS,,ISO 2678-1:1977,Environmental tests for aircraft equipment — Part 1: Insulation resistance and high voltage tests for electrical equipment,Essais en environnement pour les équipements aéronautiques — Partie 1: Essais de résistance d'isolement et de haute tension pour les équipements électriques,1977-12-01,1,['49.060'],ISO/TC 20,9599,,[7645],['en'],3, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).