AS/NZS 4999(INT):2003

1 - AS/NZS 4999(Int):2003 PVC-U MAINTENANCE SHAFTS
4 - PREFACE
5 - CONTENTS
6 - SECTION 1 SCOPE AND GENERAL
6 - 1.1 SCOPE
6 - 1.2 LIMITATIONS
6 - 1.3 REFERENCED DOCUMENTS
7 - 1.4 DEFINITIONS
7 - 1.4.1 Maintenance shaft (MS)
7 - 1.4.2 Maintenance shaft chamber
7 - 1.4.3 Maintenance shaft riser
8 - 1.4.4 Average service temperature
8 - 1.4.5 Effective seal
8 - 1.4.6 Effective sealing length
9 - SECTION 2 GENERAL REQUIREMENTS
9 - 2.1 GENERAL
9 - 2.2 MATERIAL
9 - 2.3 MATERIAL DATA SHEETS
9 - 2.4 FREEDOM FROM DEFECTS
9 - 2.4.1 General
9 - 2.4.2 Ends
10 - 2.4.3 Joints
10 - 2.5 ELASTOMERIC SEALS
10 - 2.6 SOLVENT CEMENTS
10 - 2.7 PACKAGING, STORAGE AND TRANSPORTATION
11 - SECTION 3 DESIGN
11 - 3.1 GENERAL
11 - 3.2 ACCESSIBILITY
11 - 3.3 CHAMBER WALL THICKNESS
11 - 3.4 STRUCTURAL INTEGRITY
11 - 3.4.1 General
12 - 3.4.2 Design verification by structural analysis
12 - 3.4.3 Design verification by type test
12 - 3.4.4 Riser and riser joint load resistance
13 - SECTION 4 MANUFACTURE
13 - 4.1 CONFIGURATIONS
13 - 4.2 DIMENSIONS AND TOLERANCES
13 - 4.2.1 General
13 - 4.2.2 Riser
13 - 4.2.3 Chamber wall thickness
13 - 4.3 WELDING
13 - 4.3.1 General
13 - 4.3.2 Training and certification
15 - SECTION 5 PERFORMANCE REQUIREMENTS
15 - 5.1 GENERAL
15 - 5.2 ACCESSIBILITY
15 - 5.3 WELDED JOINTS
16 - 5.4 ELASTOMERIC SEAL JOINTS
16 - 5.4.1 General
16 - 5.4.2 Hydrostatic pressure test
16 - 5.4.3 Liquid infiltration test
16 - 5.4.4 Contact width and pressure
16 - 5.5 VACUUM-PRODUCTION TEST
17 - SECTION 6 MARKING REQUIREMENTS
17 - 6.1 GENERAL
17 - 6.2 ADDITIONAL MARKING WITH ADHESIVE LABEL
18 - APPENDIX A - MEANS FOR DEMONSTRATING COMPLIANCE WITH THIS STANDARD
18 - A1 SCOPE
18 - A2 RELEVANCE
18 - A3 PRODUCT CERTIFICATION
18 - A4 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
18 - A4.1 General
18 - A4.2 Retesting
19 - A4.3 Rejection after retest
21 - APPENDIX B - REQUIREMENTS FOR STRUCTURAL ANALYSIS
21 - B1 SCOPE
21 - B2 PRINCIPLE
21 - B3 REQUIREMENTS
21 - B4 TEST REPORT
23 - APPENDIX C - METHOD FOR DESIGN VERIFICATION BY TYPE TESTING
23 - C1 SCOPE AND GENERAL
23 - C1.1 Scope
23 - C1.2 Relevance of test
23 - C1.3 Preparation of test assemblies
23 - C2 TYPE TEST
23 - C2.1 Principle
23 - C2.2 Apparatus
24 - C2.3 Personnel
24 - C2.4 Procedure
24 - C3 TEST REPORT
27 - APPENDIX D - METHOD FOR VACUUM TESTING
27 - D1 SCOPE AND GENERAL
27 - D1.1 Scope
27 - D1.2 Relevance of test
27 - D1.3 Preparation of test assemblies
27 - D2 TEST
27 - D2.1 Principle
27 - D2.2 Apparatus
27 - D2.3 Procedure for vacuum type test
27 - D2.4 Procedure for vacuum batch release test
28 - D3 TEST REPORT
28 - D3.1 Type test report
28 - D3.2 Batch release test report
29 - APPENDIX E - METHOD FOR LOAD TESTING
29 - E1 SCOPE AND GENERAL
29 - E1.1 Scope
29 - E1.2 Relevance of test
29 - E1.3 Preparation of test assemblies
29 - E2 TEST PROCEDURE
29 - E2.1 Principle
29 - E2.2 Apparatus
29 - E2.3 Procedure
30 - E3 TEST REPORT

This Interim Standard specifies design and manufacture of a PVC-U maintenance shaft (MS) comprising a fabricated or injection moulded, or both, chamber jointed to an extruded PVC riser.

This Interim Standard specifies design and manufacture requirements for a PVC-U maintenance shaft (MS) comprising a fabricated or injection moulded, or both, chamber jointed to an extruded PVC riser. MSs are intended for installation in sewerage systems (up to DN 300) for transportation of sewage at atmospheric pressure and average service temperatures up to 25C. They are intended for buried vertical installation at depths up to 6 m, without buckling collapse and without exceeding long-term diametral distortion and stress limits as specified. Long-term design criteria limits are 50-year extrapolated or predicted values. Provided installation and operating conditions conform to the guidelines in this Interim Standard, life expectancy may exceed 50 years. Methods for demonstrating compliance with this Interim Standard are given in Appendix A.

First published as AS/NZS 4999(Int):2003.