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ISO/AWI 11114-1

Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1: Metallic materials

General information

20.00     Nov 13, 2025

ISO

ISO/TC 58

International Standard

Scope

This document provides requirements for the selection of safe combinations of metallic cylinder and valve materials and cylinder gas content.
The compatibility data given is related to single gases and to gas mixtures.
Seamless metallic, welded metallic and composite gas cylinders and their valves, used to contain compressed, liquefied and dissolved gases are considered.
NOTE In this document the term "cylinder" refers to transportable pressure receptacles, which also include tubes and pressure drums.
Aspects such as the quality of delivered gas product are not considered.

Life cycle

PREVIOUSLY

PUBLISHED
ISO 11114-1:2020

PUBLISHED
ISO 11114-1:2020/Amd 1:2023

NOW

PROJECT
ISO/AWI 11114-1
20.00 New project registered in TC/SC work programme
Nov 13, 2025

National adoptions

Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1: Metallic materials

10.99   New project approved

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