# ISO 4126:1981 — Withdrawn and superseded ISO standards

For ISO 4126:1981, item title is Safety valves — General requirements; status code is 9599; successor is ISO 4126-1:1991; withdrawn / published date is 1981-04-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4126:1981 _(verified: appears in the quote below)_
- **Item title:** Safety valves — General requirements _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4126-1:1991
- **Withdrawn / published date:** 1981-04-01 _(verified: appears in the quote below)_

## What the source says

> 9878,IS,,ISO 4126:1981,Safety valves — General requirements,Soupapes de sûreté — Prescriptions générales,1981-04-01,2,['13.240'],ISO/TC 153,9599,,[9879],"['en','fr']",9,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).