# ISO 4126-5:2004 — Withdrawn and superseded ISO standards For ISO 4126-5:2004, item title is Safety devices for protection against excessive pressure — Part 5: Controlled safety pressure relief systems (CSPRS); status code is 9599; successor is ISO 4126-5:2013; withdrawn / published date is 2004-03-24, recorded from its source on 2026-08-05. - **Identifier:** ISO 4126-5:2004 _(verified: appears in the quote below)_ - **Item title:** Safety devices for protection against excessive pressure — Part 5: Controlled safety pressure relief systems (CSPRS) _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 4126-5:2013 - **Withdrawn / published date:** 2004-03-24 _(verified: appears in the quote below)_ ## What the source says > 34204,IS,,ISO 4126-5:2004,Safety devices for protection against excessive pressure — Part 5: Controlled safety pressure relief systems (CSPRS),Dispositifs de sécurité pour protection contre les pressions excessives — Partie 5: Dispositifs de sûreté à décharge contrôlés contre les surpressions (DSDCS),2004-03-24,1,['13.240'],ISO/TC 185,9599,"[22788,13162]",[50828],"['en','fr']",27,"

ISO 4126-5:2004 specifies the requirements for controlled safety pressure relief systems, irrespective of the fluid for which they are designed. It is applicable to main valves having a flow diameter of 6 mm and above for use at pressures of 0,1 bar (= 0,01 MPa) gauge and above. No limitation is placed on temper ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).