ISO 407:2023
Small medical gas cylinders — Pin-index yoke-type valve connections

Standard No.

ISO 407:2023

Release Date

2023

Published By

Standard Association of Australia （SAA）

Latest

ISO 407:2023

Scope

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.

NOTE 1        This type of connection is primarily used for small cylinders (5 l or below).

NOTE 2        In this document the unit bar is used, due to its universal use in the field of technical gases. It should, however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa (1 bar = 10⁵ Pa = 10⁵ N/m²).

This document specifies:

—     basic dimensions;

—     requirements for alternative designs of the yoke-type valve connections;

—     dimensions and positions for the holes and pins for the outlet connections.

It also specifies the dimensions and positions for the holes and pins for the outlet connections for gases and gas mixtures.

ISO 407:2023 history

• 2023 ISO 407:2023 Small medical gas cylinders — Pin-index yoke-type valve connections
• 2021 ISO 407:2021 Small medical gas cylinders - Pin-index yoke-type valve connections
• 2014 ISO 407:2014 Small medical gas cylinders — Pin-index yoke-type valve connections
• 2004 ISO 407:2004 Small medical gas cylinders - Pin-index yoke-type valve connections
• 1999 ISO 407:1991/Cor 1:1999 Small medical gas cylinders - Pin-index yoke-type valve connections; Technical Corrigendum 1
• 1991 ISO 407:1991 Small medical gas cylinders; pin-index yoke-type valve connections
• 1986 ISO 407:1983/Amd 1:1986 Amendment 1-1986
• 1983 ISO 407:1983 Small medical gas cylinders; Yoke-type valve connections