Under the direction of ISO/TC 58 the standardization of

• The design and testing of valves, fittings and accessories (including flexible hoses), valve protection guards and caps, connection threads for gas cylinders and other transportable pressure receptacles, (e.g. bundles of cylinders).

•Test and calculation methods to determine the fire potential (including oxidizing ability), toxicity and tissue corrosiveness of gases and gas mixtures.

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Sustainable Development Goals

This committee contributes with 39 standards to the following Sustainable Development Goal:


published ISO standards *


ISO standards under development *

Participating members
Observing members

* number includes updates

Reference Title Type
ISO/TC 58/SC 2/WG 4   Valve stem and cylinder neck threads Working group
ISO/TC 58/SC 2/WG 6   Gas cylinder valves - Specifications and testing Working group
ISO/TC 58/SC 2/WG 7   Determination of properties of gases and gas mixtures Working group
ISO/TC 58/SC 2/WG 11   Allocations of valve outlets Working group
ISO/TC 58/SC 2/WG 12   Specification and test for LPG cylinder valves Working group
ISO/TC 58/SC 2/WG 14   Inspection and maintenance of cylinder valves Working group
Liaison Committees to ISO/TC 58/SC 2

The committees below can access the documents of ISO/TC 58/SC 2:

Reference Title ISO/IEC
ISO/TC 1 Screw threads ISO
ISO/TC 121 Anaesthetic and respiratory equipment ISO
ISO/TC 121/SC 6 Medical gas supply systems ISO


Liaison Committees from ISO/TC 58/SC 2

ISO/TC 58/SC 2 can access the documents of the committees below:

Reference Title ISO/IEC
ISO/TC 44/SC 8 Equipment for gas welding, cutting and allied processes ISO
ISO/TC 121/SC 6 Medical gas supply systems ISO
ISO/TC 197 Hydrogen technologies ISO


Organizations in liaison (Category A and B)
Acronym Title Category
ECMA European Cylinder Makers Association A
EIGA European Industrial Gases Association A
ILO International Labour Organization A
Liquid Gas Europe the European LPG Association A

ISO/TC 58/SC 2 - Secretariat

AFNOR [France]

Association française de normalisation
11 rue Francis de Pressensé
F-93571 La Plaine Saint-Denis Cedex

Tel: +33 1 41 62 80 00
Fax: +33 1 49 17 90 00