AS/NZS 3509:1996

1 - AS/NZS 3509:1996 LP GAS FUEL VESSELS FOR AUTOMOTIVE USE
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 APPLICATION
6 - 1.3 REFERENCED DOCUMENTS
7 - 1.4 DESIGNATION
7 - 1.5 DEFINITIONS
7 - 1.5.1 Capacity (of a fuel vessel)
8 - 1.5.2 Inspection body
8 - 1.5.3 Inspector
8 - 1.5.4 Integrated gas cylinder test station
8 - 1.5.5 Main longitudinal joint
8 - 1.5.6 May
8 - 1.5.7 Regulatory authority
8 - 1.5.8 Shall
8 - 1.5.9 Should
8 - 1.5.10 Welding procedure specification
8 - 1.5.11 Welding procedure test
8 - 1.5.12 Yield strength
8 - 1.6 NEW DESIGNS, MATERIALS AND MANUFACTURING METHODS
9 - SECTION 2 GENERAL REQUIREMENTS
9 - 2.1 DESIGN AND CONSTRUCTION
9 - 2.1.1 Thickness of cylindrical section
10 - 2.1.2 Thickness of ends
10 - 2.1.3 Form of ends
10 - 2.1.4 Pressure-retaining joints
12 - 2.1.5 Openings
13 - 2.1.6 Attachments
16 - 2.2 MATERIAL
16 - 2.2.1 General
16 - 2.2.2 Certificates
16 - 2.3 WELDING
16 - 2.3.1 Supervision of welding
16 - 2.3.2 Competence of welder
16 - 2.3.3 Welding procedures
16 - 2.3.4 Repair of welds
17 - 2.4 INSPECTION AND TESTING
17 - 2.4.1 Radiographic examination
19 - 2.4.2 Visual inspection
19 - 2.4.3 Mechanical tests
21 - 2.4.4 Pressure tests
22 - 2.4.5 Overall quality control
22 - 2.5 MARKING
22 - 2.6 RECORD AND TEST CERTIFICATES
23 - 2.7 DESPATCH
24 - SECTION 3 WELDED CARBON STEEL LP GAS FUEL VESSELS
24 - 3.1 CYLINDRICAL SECTIONS AND ENDS
24 - 3.1.1 Steelmaking process
24 - 3.1.2 Acceptable steel grades
24 - 3.1.3 Weldability
24 - 3.1.4 Mechanical testing
24 - 3.2 ATTACHMENTS
24 - 3.3 HEAT TREATMENT
25 - 3.4 SURFACE COATING AND COLOUR
26 - SECTION 4 WELDED STAINLESS STEEL LP GAS FUEL VESSELS
26 - 4.1 CYLINDRICAL SECTION AND ENDS
26 - 4.1.1 Cast analysis
26 - 4.1.2 Test certificate(s)
26 - 4.1.3 Mechanical testing
26 - 4.2 ATTACHMENTS
26 - 4.3 INTERGRANULAR CORROSION TEST
28 - SECTION 5 TYPE TESTS
28 - 5.1 GENERAL
28 - 5.2 STRETCH TEST
29 - 5.3 HOOP STRESS TEST
29 - 5.4 PULSATION TEST
29 - 5.5 NON-CIRCULAR INSERTED PAD TEST
30 - APPENDIX A - INFORMATION ON TESTS AND FITTINGS FOR CONTAINER SUBASSEMBLIES TO BE SUPPLIED TO AN INSTALLER
30 - A1 GENERAL
30 - A2 TESTS
30 - A3 FITTINGS
31 - APPENDIX B - LOCATION OF TEST SPECIMENS CUT FROM VESSEL

Specifies design, construction, manufacturer's tests, and marking requirements for welded LP gas fuel vessels for automotive installation in accordance with AS 1425 or NZS 5422.1. Applicable materials and capacities are carbon steel up to 500 L and stainless steel up to 200 L. An appendix provides information on tests and fittings for subassemblies to be supplied to an installer.

This Standard specifies requirements for welded carbon steel LP gas fuel vessels of total internal volume not greater than 500 L, and for welded stainless steel LP gas fuel vessels of total internal volume not greater than 200 L, intended for automotive installations.NOTES:1 AS 1425 (for use in Australia) and NZS 5422.1 (for use in New Zealand) specify requirements for the installation of LP gas fuel vessels for vehicles.2 Appendix A provides information that may be helpful to suppliers of 'valved-up' vessels for use by an installer without pre-installation tests.

First published as AS 1210 Intpl-1972.
Revised and redesignated as AS 3509-1988.
Revised and designated AS/NZS 3509:1996.