AS/NZS ISO 11114.5:2025 identically adopts ISO 11114 5:2022, which specifies some gas compatibility test methods to evaluate plastic materials suitable for use in the manufacture of composite gas cylinder liners. It is also applicable to the evaluation of the suitability of plastic matrix materials used for Type 5 cylinders.
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General requirements
5 Tests to be performed on specimens
5.1 Permeation test
5.1.1 Disc samples
5.1.2 Test bench and set-up
5.1.3 Procedure
5.1.4 Calculation of the permeability coefficient
5.1.5 Recording and interpretation of test results
5.2 Swelling/blistering test
5.2.1 Disc samples
5.2.2 Recording and interpretation of tests results
5.3 Ageing test
5.3.1 Samples
5.3.2 Procedure
5.3.3 Recording and interpretation of the results
6 Tests to be performed on cylinders
6.1 Liner collapse due to internal pressure in the cylinder being below atmospheric pressure
6.1.1 General
6.1.2 Procedure
6.1.3 Evaluation parameters
6.2 Permeability test
6.2.1 General
6.2.2 Procedure
6.2.3 Evaluation parameters
6.3 Liner collapse and blistering test
6.3.1 General
6.3.2 Procedure
6.3.3 Evaluation parameters
7 Rejection and rendering cylinders used for testing unserviceable
