AS 2337.3-1998

1 - AS 2337.3-1998 GAS CYLINDER TEST STATIONS - INSPECTION AND TESTING OF FIBRE REINFORCED PLASTICS (FRP) GAS CYLINDERS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 REFERENCED DOCUMENTS
6 - 3 DEFINITIONS
6 - 3.1 Autofrettage
6 - 3.2 Composite cylinder
6 - 3.3 Exterior coating
6 - 3.4 Fibre
7 - 3.5 Fibreglass
7 - 3.6 Fully-wrapped cylinder
7 - 3.7 Hoop-wrapped cylinder
7 - 3.8 Liner
7 - 3.9 Overwrap
7 - 3.10 Protective covering
7 - 3.11 Resin
7 - 3.12 Roving
7 - 4 PREPARATION OF CYLINDER FOR INSPECTION
7 - 5 INSPECTION AND TEST
7 - 5.1 General
7 - 5.2 External examination
7 - 5.2.1 Exposed metal portions and O-ring grooves
8 - 5.2.2 Overwrap portion
8 - 5.3 Internal examination
8 - 5.4 Hydrostatic pressure testing
8 - 6 REPAIR OF CYLINDERS
8 - 6.1 Repairs
8 - 6.2 Protective cover replacement
8 - 7 STAMPING OR MARKING
9 - 8 CONDEMNING
9 - 9 EXPLANATION OF VISUAL ASSESSMENT OF COMPOSITE GAS CYLINDERS BUILT TO AUSTRALIAN STANDARDS
9 - 10 EXPLANATION OF VISUAL ASSESSMENT OF COMPOSITE GAS CYLINDERS BUILT TO OTHER STANDARDS
20 - APPENDIX A - BACKGROUND INFORMATION ON FRP GAS CYLINDERS
21 - APPENDIX B - PROCEDURE FOR THE REPAIR OF OVERWRAP DAMAGE ON FRP COMPRESSED GAS CYLINDERS
21 - B1 SCOPE
21 - B2 PROCEDURE
21 - B2.1 Damage assessment
21 - B2.2 Surface preparation
21 - B2.3 Application
22 - APPENDIX C - EXAMPLES OF CUT CALCULATIONS
22 - C1 GENERAL
22 - C2 CALCULATIONS
22 - C2.1 General
22 - C2.2 Example 1
23 - C2.3 Example 2
23 - C2.4 Example 3

Extends the scope of the previous edition to include requirements for all types of FRP overwrapped cylinders with metal or non-metal liners. The test regimes now include specific requirements for hoop-wrapped gas cylinders with seamless steel liners for use as fuel containers for natural gas powered vehicles. It is intended for use in conjunction with AS 2337.1.

This Standard specifies inspection and test requirements for the following fibre reinforced plastics cylinders-(a) hoop-wrapped metal liners;(b) fully-wrapped metal liners; and(c) fully-wrapped non-metal liners.See AS 2337.1 for inspection of metal components of cylinders to various types of gas cylinders overwrapped with FRP.Where no Australian Standards exists for particular wrapped cylinders, but such cylinders are manufactured to other standards, certificated gas cylinder test station and users should follow guidelines supplied by the manufacturer.NOTE: Appendix A gives information on the relevant features of FRP gas cylinders.

First published as AS 2337.3-1987.
Second edition 1998.