ISO 11114-2:2013
Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2: Non-metallic materials
ISO 11114-2:2013 gives guidance in the selection and evaluation of compatibility between non-metallic materials for gas cylinders and valves and the gas contents. It also covers bundles, tubes and pressure drums.
ISO 11114-2:2013 can be helpful for composite and laminated materials used for gas cylinders.
It does not cover the subject completely and is intended to give guidance only in evaluating the compatibility of gas/material combinations.
Only the influence of the gas in changing the material and mechanical properties is considered (for example chemical reaction or change in physical state). The basic properties of the materials, such as mechanical properties, required for design purposes are normally available from the materials' supplier and are not considered.
The compatibility data given are related to single component gases but can be used to some extent for gas mixtures. Ceramics, glasses, and adhesives are not covered.
Other aspects such as quality of delivered gas are not considered.
ISO 11114-2:2013 is not intended to be used for cryogenic fluids (see ISO 21010).
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1 Scope
2 Normative references
3 Terms and definitions
4 Materials
4.1 General
4.2 Types of material
5 General considerations
6 Specific considerations
6.1 General
6.2 Non-compatibility risks
6.2.1 Violent reaction (oxidation/burning) (F)
6.2.1.1 Principle
6.2.1.2 Specifications for oxidizing gases
6.2.2 Weight loss (W)
6.2.2.1 Extraction
6.2.2.2 Chemical attack
6.2.3 Swelling of material (S)
6.2.4 Change in mechanical properties (M)
6.2.5 Other compatibility considerations
6.2.5.1 Impurities in the gas (I)
6.2.5.2 Contamination of the material (C)
6.2.5.3 Release of dangerous products (D)
6.2.5.4 Ageing (G)
6.2.5.5 Permeation (P)
7 Compatibility data
7.1 Table of compatibility
7.2 Symbols and abbreviations
7.2.1 Symbols for compatibility
7.2.2 Abbreviations for materials
7.2.3 Abbreviations for non-compatibility risks
7.2.4 Examples
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1 Scope
2 Normative references
3 Terms and definitions
4 Materials
4.1 General
4.2 Types of material
5 General considerations
6 Specific considerations
6.1 General
6.2 Non-compatibility risks
6.2.1 Violent reaction (oxidation/burning) (F)
6.2.1.1 Principle
6.2.1.2 Specifications for oxidizing gases
6.2.2 Weight loss (W)
6.2.2.1 Extraction
6.2.2.2 Chemical attack
6.2.3 Swelling of material (S)
6.2.4 Change in mechanical properties (M)
6.2.5 Other compatibility considerations
6.2.5.1 Impurities in the gas (I)
6.2.5.2 Contamination of the material (C)
6.2.5.3 Release of dangerous products (D)
6.2.5.4 Ageing (G)
6.2.5.5 Permeation (P)
7 Compatibility data
7.1 Table of compatibility
7.2 Symbols and abbreviations
7.2.1 Symbols for compatibility
7.2.2 Abbreviations for materials
7.2.3 Abbreviations for non-compatibility risks
7.2.4 Examples