# ISO 21789:2009 — Withdrawn and superseded ISO standards For ISO 21789:2009, item title is Gas turbine applications — Safety; status code is 9599; successor is ISO 21789:2022; withdrawn / published date is 2009-02-12, recorded from its source on 2026-08-05. - **Identifier:** ISO 21789:2009 _(verified: appears in the quote below)_ - **Item title:** Gas turbine applications — Safety _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 21789:2022 - **Withdrawn / published date:** 2009-02-12 _(verified: appears in the quote below)_ ## What the source says > 35990,IS,,ISO 21789:2009,Gas turbine applications — Safety,Applications des turbines à gaz — Sécurité,2009-02-12,1,['27.040'],ISO/TC 192,9599,,[74201],"['en','ru']",82,"
ISO 21789:2009 covers the safety requirements for gas turbine applications using liquid or gaseous fuels and the safety-related control and detection systems and essential auxiliaries for all types of open cycles (simple, combined, regenerative, reheat, etc.) used in onshore and offshore applications including floating production platforms.
It applies to driven machinery only where an integral part of the gas turbine (e.g. a gearbox integral to the gas turbine) or located within the gas turbine enclosure and forming ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).