AS/NZS ISO 11119.4:2025
Gas cylinders – Refillable composite gas cylinders – Design, construction and testing – Part 4: Fully wrapped fibre reinforced composite gas cylinders up to 150 l with load-sharing welded metallic liners
The objective of this document is to specify requirements for composite gas cylinders with load-sharing welded liners between 0.5 l and 150 l water capacity and a maximum test pressure of 450 bar for the storage and conveyance of compressed or liquefied gases.
This document is identical with, and has been reproduced from, ISO 11119‑4:2016 Gas cylinders – Refillable composite gas cylinders – Design, construction and testing – Part 4: Fully wrapped fibre reinforced composite gas cylinders up to 150 l with load-sharing welded metallic liners.
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AS/NZS ISO 11119.4:2025 Refillable composite gas cylinders - Design, construction and testing Fully wrapped fibre reinforced composite gas cylinders up to 150 l with load-sharing welded metallic liners
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Inspection and testing
6 Materials
6.1 Liner materials
6.2 Composite materials
7 Design and manufacture
7.1 General
7.2 Design submission
7.3 Manufacturing
8 Type approval procedure
8.1 General requirements
8.2 Prototype tests
8.3 New design
8.4 Design variants
8.5 Type approval test procedures and criteria
8.5.1 Proof pressure test
8.5.2 Hydraulic volumetric expansion test
8.5.3 Liner burst test
8.5.4 Liner integrity test
8.5.5 Cylinder burst test
8.5.6 Ambient cycle test
8.5.7 Environmental cycle test
8.5.8 Flaw test
8.5.9 Drop test
8.5.10 High velocity impact (gunfire) test
8.5.11 Fire resistance test
8.5.12 Salt water immersion test
8.5.13 Torque test
8.5.14 Environmentally assisted stress rupture test
8.5.15 Leak test
8.5.16 Composite material mechanical properties tests
8.5.17 Failure of type approval tests
9 Batch inspection and testing
9.1 General
9.2 Liner
9.3 Failure of liner batch tests
9.4 Overwrap materials
9.5 Composite cylinder
9.6 Cylinder failure during type approval or batch testing
10 Cylinder marking
10.1 General
10.2 Additional marking
Annex A (informative) Examples of design approval certificate
Annex B (informative) Specimen test reports
Annex C (normative) Prototype, design variant, and production testing
Bibliography
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AS/NZS ISO 11119.4:2025 Refillable composite gas cylinders - Design, construction and testing Fully wrapped fibre reinforced composite gas cylinders up to 150 l with load-sharing welded metallic liners
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Inspection and testing
6 Materials
6.1 Liner materials
6.2 Composite materials
7 Design and manufacture
7.1 General
7.2 Design submission
7.3 Manufacturing
8 Type approval procedure
8.1 General requirements
8.2 Prototype tests
8.3 New design
8.4 Design variants
8.5 Type approval test procedures and criteria
8.5.1 Proof pressure test
8.5.2 Hydraulic volumetric expansion test
8.5.3 Liner burst test
8.5.4 Liner integrity test
8.5.5 Cylinder burst test
8.5.6 Ambient cycle test
8.5.7 Environmental cycle test
8.5.8 Flaw test
8.5.9 Drop test
8.5.10 High velocity impact (gunfire) test
8.5.11 Fire resistance test
8.5.12 Salt water immersion test
8.5.13 Torque test
8.5.14 Environmentally assisted stress rupture test
8.5.15 Leak test
8.5.16 Composite material mechanical properties tests
8.5.17 Failure of type approval tests
9 Batch inspection and testing
9.1 General
9.2 Liner
9.3 Failure of liner batch tests
9.4 Overwrap materials
9.5 Composite cylinder
9.6 Cylinder failure during type approval or batch testing
10 Cylinder marking
10.1 General
10.2 Additional marking
Annex A (informative) Examples of design approval certificate
Annex B (informative) Specimen test reports
Annex C (normative) Prototype, design variant, and production testing
Bibliography
AS/NZS ISO 11119.4:2025
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.