# ISO 14520-10:2016 — Withdrawn and superseded ISO standards For ISO 14520-10:2016, item title is Gaseous fire-extinguishing systems — Physical properties and system design — Part 10: HFC 23 extinguishant; status code is 9599; successor is ISO 14520-10:2019; withdrawn / published date is 2016-09-28, recorded from its source on 2026-08-05. - **Identifier:** ISO 14520-10:2016 _(verified: appears in the quote below)_ - **Item title:** Gaseous fire-extinguishing systems — Physical properties and system design — Part 10: HFC 23 extinguishant _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 14520-10:2019 - **Withdrawn / published date:** 2016-09-28 _(verified: appears in the quote below)_ ## What the source says > 55346,IS,,ISO 14520-10:2016,Gaseous fire-extinguishing systems — Physical properties and system design — Part 10: HFC 23 extinguishant,Systèmes d'extinction d'incendie utilisant des agents gazeux — Propriétés physiques et conception des systèmes — Partie 10: Agent extincteur HFC 23,2016-09-28,3,['13.220.10'],ISO/TC 21/SC 8,9599,[39792],[74525],['en'],9,"
ISO 14520-10:2016 contains specific requirements for gaseous fire-extinguishing systems, with respect to the HFC 23 extinguishant. It includes details of physical properties, specification, usage and safety aspects and is applicable to systems operating at a nominal pressure of 41 bar without nitrogen superpressurization and 70 bar superpr ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).