# ISO 407:2021 — Withdrawn and superseded ISO standards

For ISO 407:2021, item title is Small medical gas cylinders — Pin-index yoke-type valve connections; status code is 9599; successor is ISO 407:2023; withdrawn / published date is 2021-06-04, recorded from its source on 2026-08-05.

- **Identifier:** ISO 407:2021 _(verified: appears in the quote below)_
- **Item title:** Small medical gas cylinders — Pin-index yoke-type valve connections _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 407:2023
- **Withdrawn / published date:** 2021-06-04 _(verified: appears in the quote below)_

## What the source says

> 79090,IS,,ISO 407:2021,Small medical gas cylinders — Pin-index yoke-type valve connections,Petites bouteilles à gaz médicaux — Raccords de robinets du type étrier avec ergots de sécurité,2021-06-04,4,['11.040.10'],ISO/TC 58/SC 2,9599,[40148],[85829],"['en','fr']",20,"<p>This document is applicable to pin-index yoke-type valve connections for medical gas cylinders, with a working pressure up to a maximum of 200 bar or test pressure up to a maximum of 300 bar, or both.</p><p>NOTE 1 This type of connection is primarily used for small cylinders (5 l or below).</p><p>NOTE 2 In this document the unit bar is used, due to its universal use in the field of technical gases. It should, however, b

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).