AS 2971-1987

1 - AS 2971-1987 SERIALLY PRODUCED PRESSURE VESSELS
4 - PREFACE
6 - CONTENTS
7 - SECTION 1. SCOPE AND GENERAL
7 - 1.1 SCOPE.
7 - 1.2 REFERENCED DOCUMENTS.
7 - 1.3 DEFINITIONS.
7 - 1.3.1 Unfired pressure vessel
7 - 1.3.2 Serially produced vessels
7 - 1.3.3 Batch
7 - 1.3.4 Design pressure
7 - 1.3.5 Design temperature
7 - 1.3.6 Design minimum temperature
8 - 1.3.7 Corrosion
8 - 1.3.8 Manufacturer
8 - 1.3.9 Inspecting Authority
8 - 1.3.10 Shall and should
8 - 1.3.11 Approved and approval
8 - 1.4 CLASSIFICATION OF VESSELS.
8 - 1.5 DESIGNATION.
8 - 1.6 APPLICATION OF CLASSES OF VESSELS.
9 - SECTION 2. MATERIALS, DESIGN, AND MANUFACTURE
9 - 2.1 MATERIALS.
9 - 2.2 DESIGN.
9 - 2.2.1 General.
9 - 2.2.2 Design pressure.
9 - 2.2.3 Crevices.
9 - 2.2.4 Cleaning access.
9 - 2.2.5 Inspection openings.
9 - 2.2.6 Closures.
9 - 2.2.7 Drains.
9 - 2.3 MANUFACTURE.
9 - 2.4 PROTECTIVE DEVICES AND FITTINGS.
9 - 2.4.1 Fittings.
10 - 2.4.2 Pressure-relief devices.
10 - 2.5 CORROSION PROTECTION.
11 - SECTION 3. PERFORMANCE REQUIREMENTS
11 - 3.1 GENERAL.
11 - 3.2 RESISTANCE TO INTERNAL PRESSURE.
11 - 3.3 RESISTANCE TO BURSTING AND FRAGMENTATION.
11 - 3.4 RESISTANCE TO FATIGUE.
11 - 3.5 RESISTANCE TO DROPPING.
11 - 3.6 RESISTANCE TO PENETRATION.
11 - 3.7 RESISTANCE TO IMPACT.
11 - 3.8 RESISTANCE TO TORQUE.
11 - 3.9 CLOSURE.
11 - 3.10 RESISTANCE TO CORROSION.
11 - 3.11 PRESSURE RELIEF.
11 - 3.11.1 Pressure-relief valve or similar device.
12 - 3.11.2 Rupture member
12 - 3.11.3 Fusible plug.
12 - 3.11.4 Required discharge capacity.
12 - 3.12 MARKING PLATE ADHESION.
12 - 3.13 SURFACE QUALITY AND CONFORMANCE.
12 - 3.14 OTHER PERFORMANCE CHARACTERISTICS.
13 - SECTION 4. MARKING AND INSTRUCTIONS
13 - 4.1 MARKING.
13 - 4.1.1 Marks required.
13 - 4.1.2 Method of marking.
13 - 4.1.3 Location of marks.
13 - 4.1.4 Type of marks.
13 - 4.2 INSTRUCTIONS.
14 - SECTION 5. ASSESSMENT OF COMPLIANCE WITH PERFORMANCE REQUIREMENTS OF THIS STANDARD
14 - 5.1 GENERAL.
14 - 5.2 WITNESSING OF TYPE TESTS.
14 - 5.3 REPORT OF TYPE TESTING.
14 - 5.4 MANUFACTURER'S DATA REPORT.
14 - 5.5 INSPECTION OF MANUFACTURER'S FACILITIES.
14 - 5.6 RETESTS.
14 - 5.6.1 Retest after failure of a type test.
14 - 5.6.2 Retests after failure of a production test.
14 - 5.6.3 Modification.
16 - APPENDIX A - INFORMATION TO BE SUPPLIED BY THE PURCHASER AND THE MANUFACTURER
16 - A1 INFORMATION TO BE SUPPLIED BY THE PURCHASER.
16 - A2 INFORMATION TO BE SUPPLIED BY THE MANUFACTURER TO THE INSPECTING AUTHORITY TO OBTAIN DESIGN APPROVAL.
17 - APPENDIX B - PROOF PRESSURE TEST
17 - B1 SCOPE.
17 - B2 PRESSURIZING MEDIUM.
17 - B3 STATE OF VESSEL.
17 - B4 PROCEDURE.
17 - B5 REPORT.
18 - APPENDIX C - BURST AND FRAGMENTATION TEST
18 - C1 SCOPE.
18 - C2 PRESSURIZING MEDIUM.
18 - C3 TEST SAMPLE.
18 - C4 TEST TEMPERATURE.
18 - C5 PREPARATION FOR THE TEST.
18 - C6 PROCEDURE.
18 - C6.1 General.
18 - C6.2 Safety precautions.
18 - C7 REPORT.
19 - APPENDIX D - FATIGUE TEST
19 - D1 SCOPE.
19 - D2 PRESSURIZING MEDIUM.
19 - D3 TEST SAMPLE.
19 - D4 PROCEDURE.
19 - D5 REPORT.
20 - APPENDIX E - DROP TEST
20 - E1 SCOPE.
20 - E2 APPARATUS.
20 - E3 TEST SAMPLES.
20 - E4 TEST TEMPERATURE.
20 - E5 PREPARATION FOR THE TEST.
20 - E6 PROCEDURE.
20 - E6.1 General.
21 - E6.2 Safety precautions.
21 - E7 REPORT.
22 - APPENDIX F - PENETRATION TEST
22 - F1 SCOPE.
22 - F2 APPARATUS.
22 - F3 TEST SAMPLES.
22 - F4 TEST TEMPERATURE.
22 - F5 PREPARATION FOR THE TEST.
22 - F6 PROCEDURE.
22 - F6.1 General.
22 - F6.2 Safety precautions.
22 - F7 REPORT.
23 - APPENDIX G - IMPACT TEST
23 - G1 SCOPE.
23 - G2 APPARATUS.
23 - G3 TEST SAMPLES.
23 - G4 TEST TEMPERATURE.
23 - G5 PREPARATION FOR THE TEST.
23 - G6 PROCEDURE.
23 - G6.1 General.
23 - G6.2 Safety precautions.
23 - G7 REPORT.
24 - APPENDIX H - CORROSION TESTS
24 - H1 SCOPE.
24 - H2 APPLICATION.
24 - H2.1 Salt spray test.
24 - H2.2 Brass-cracking test.
24 - H3 SALT SPRAY TEST.
24 - H4 BRASS-CRACKING TEST.
25 - APPENDIX J - PRESSURE-RELIEF DEVICE TESTS
25 - J1 SCOPE.
25 - J2 PRESSURIZING MEDIUM.
25 - J3 TEST SAMPLES.
25 - J4 PROCEDURE.
25 - J4.1 Pressure-relief valve or similar device.
25 - J4.2 Rupture disc or similar device.
25 - J4.3 Fusible plug.
25 - J5 REPORT.
26 - APPENDIX K - MARKING PLATE ADHESION TEST
26 - K1 SCOPE.
26 - K2 PROCEDURE.
26 - K3 REPORT.
27 - COMMENTARY
29 - SUMMARY OF REQUIREMENTS IN MISCELLANEOUS STANDARDS

Specifies requirements for a method of manufacture of serially produced metallic and non-metallic unfired pressure vessels having a maximum volume of 150 L, and specified limits, related to the vessel contents, on the product of the design pressure and the total vapour space. For such vessels, this method of manufacture based on type testing provides an alternative to the method given in AS 1210, SAA Unfired Pressure Vessels Code. Burst tests and other performance tests on a significant number of representative samples are used to validate design, materials, and fabrication, all simultaneously.

This Standard specifies requirements for the material, design, manufacture, and testing of serially produced metallic or non-metallic or combination unfired pressure vessels having-(a) a maximum volume of 150 L; (b) a design pressure exceeding 50 kPa; and(c) a product of the design pressure (in kilopascals) and the total vapour space (in litres) that is greater than 1000 but less than 100 000 except where the vessel contents are harmful to humans (i.e. flammable, toxic, corrosive, radioactive, etc), in which case the upper limit is 5000.NOTE: The vapour space is the maximum volume which will contain compressed gas or vapour or liquefied gas or liquid above its atmospheric boiling point.Such vessels may be refillable or non-refillable.For vessels within the range specified in (a), (b) and (c) above, this Standard provides an alternative method of design and manufacture to that given in AS 1210, but it is not intended to apply to-(i) pressure vessels covered by other Australian Standards, e.g. portable fire extinguishers, LP gas fuel vessels for automotive use, water heaters; (ii) gas cylinders covered by AS 2030.1, AS 2030.2, AS 2030.3, AS 2030.4, and Supplement No 1 to AS 2030; (iii) glass and plastics bottles; or (iv) vacuum vessels (i.e. vessels that operate only below atmospheric pressure).It should be noted that pressure vessels for use in Australia are governed by Acts and Regulations administered by Inspecting Authorities in each State and Territory of the Commonwealth. The attention of the user and manufacturer is directed to the need to make application for approval of all vessels to the relevant authorities (i.e. the Inspecting Authority having jurisdiction in each of the States or Territories in which the vessel is to be installed or used).