AS/NZS 4798(Int):2005
Polyethylene maintenance shafts
Specifies requirements for the design and manufacture of non-person man entry polyethylene maintenance shafts intended for buried sewerage systems at depths up to 6 m and diameters up to DN 300 comprising a moulded chamber and riser in one-piece seamless construction or a moulded base jointed to an extruded pipe shaft manufactured from a compatible material.
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AS/NZS 4798 (Int):2005 POLYETHYLENE MAINTENANCE SHAFTS
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 LIMITATIONS
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Maintenance shaft (MS)
1.4.2 Maintenance shaft chamber
1.4.3 Maintenance shaft riser
1.4.4 Average service temperature (Tms)
1.4.5 Depth
1.4.6 Effective seal
1.4.7 Effective sealing length
SECTION 2 GENERAL REQUIREMENTS
2.1 SCOPE
2.2 MATERIAL
2.2.1 Reprocessable and recyclable polyethylene material
2.3 THERMAL STABILITY
2.4 TENSILE PROPERTIES
2.5 SLOW CRACK GROWTH RESISTANCE
2.6 MATERIAL DATA SHEETS
2.7 WEATHERING RESISTANCE FOR HANDLING AND STORAGE
2.8 CARBON BLACK
2.9 DISPERSION
2.10 FREEDOM FROM DEFECTS
2.10.1 General
2.10.2 Ends
2.10.3 Joints
2.11 REQUIREMENTS FOR ELASTOMERIC SEALS
2.12 ADHESIVE JOINTS
2.13 REQUIREMENTS FOR MS RISER SECTIONS
2.14 PACKAGING, STORAGE AND TRANSPORTATION
SECTION 3 DESIGN
3.1 GENERAL
3.2 ACCESSIBILITY
3.3 CHAMBER WALL THICKNESS
3.4 STRUCTURAL INTEGRITY OF THE CHAMBER
3.4.1 General
3.4.2 Design verification by structural analysis
3.4.3 Design verification by type tests
3.5 RISER
3.5.1 Riser stiffness
3.5.2 Riser and riser joint load resistance
SECTION 4 MANUFACTURE
4.1 CONFIGURATIONS
4.2 DIMENSIONS AND TOLERANCES
4.2.1 General
4.2.2 Riser
4.2.3 Chamber wall thickness
4.3 WELDING
4.3.1 Welding
4.3.2 Training and Certification
SECTION 5 PERFORMANCE REQUIREMENTS
5.1 GENERAL
5.2 VACUUM TEST
5.3 ACCESSIBILITY
5.4 WELDED JOINTS
5.5 ELASTOMERIC SEAL JOINTS
5.5.1 General
5.5.2 Hydrostatic pressure test
5.5.3 Liquid infiltration test
5.5.4 Contact width and pressure
5.5.5 Load resistance of MS riser and joints
5.6 VACUUM-BATCH RELEASE TEST (BRT)
5.7 THERMAL STABILITY-BATCH RELEASE TEST (BRT)
SECTION 6 MARKING REQUIREMENTS
6.1 MARKING
6.2 ADDITIONAL MARKING WITH ADHESIVE LABEL
APPENDIX A - COMPLIANCE WITH THIS STANDARD
A1 SCOPE
A2 RELEVANCE
A3 DEFINITIONS
A1.1 Acceptable quality level (AQL)
A1.2 Batch
A1.3 Batch release test (BRT)
A1.4 Inspection level
A1.5 Lot
A1.6 Process verification test (PVT)
A1.7 Sample
A1.8 Sampling plan
A1.9 Type test (TT)
A4 PRODUCT CERTIFICATION
A5 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A5.1 General
A5.2 Retesting
A5.3 Rejection after retest
APPENDIX B - REQUIREMENTS FOR STRUCTURAL ANALYSIS
B1 SCOPE
B2 PRINCIPLE
B3 REQUIREMENTS
B4 TEST REPORT
APPENDIX C - METHOD FOR LOAD TESTING
C1 SCOPE AND GENERAL
C1.1 Scope
C1.2 Relevance of test
C1.3 Preparation of test assemblies
C2 Apparatus
C3 TEST PROCEDURE
C3.1 Principle
C3.2 Procedure for load test
C3.3 Report
APPENDIX D - METHOD FOR DESIGN VERIFICATION BY TYPE TESTING
D1 SCOPE AND GENERAL
D1.1 Scope
D1.2 Relevance of test
D1.3 Preparation of test assemblies
D2 TYPE TEST
D2.1 Principle
D2.2 Apparatus
D2.3 Personnel
D2.4 Procedure
D3 TEST REPORT
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References
Methods of test for plastics pipes and fittings - Method for hydrostatic pressure testing of fittings and elastomeric seal joints for non-pressure applications
Methods of test for plastics pipes and fittings - Method for the determination of elastomeric seal joint contact width and pressure
Methods of test for plastics pipes and fittings - Method 27: Determination of toluene extract of carbon black
Methods of test for plastics pipes and fittings - Method of test for infiltration
Buried flexible pipelines - Structural design - Commentary (Supplement to AS/NZS 2566.1:1998)
Polyethylene (PE) pipes for pressure applications
High-density polyethylene (PE-HD) pipes and fittings for soil and waste discharge (low and high temperature) systems inside buildings - Specifications
Modified PVC (PVC-M) pipes for pressure applications
Related Information
Similar Standards
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AS/NZS ISO 11296.1:2023
Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks, Part 1: General
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AS/NZS ISO 11296.2:2023
Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks, Part 2: Lining with continuous pipes
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AS/NZS ISO 11296.3:2023
Plastics piping systems for renovation of underground non-pressure drainage and sewerage networks, Part 3: Lining with close-fit pipes
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AS/NZS ISO 11297.1:2023
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AS/NZS 4798 (Int):2005 POLYETHYLENE MAINTENANCE SHAFTS
PREFACE
CONTENTS
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE
1.2 LIMITATIONS
1.3 REFERENCED DOCUMENTS
1.4 DEFINITIONS
1.4.1 Maintenance shaft (MS)
1.4.2 Maintenance shaft chamber
1.4.3 Maintenance shaft riser
1.4.4 Average service temperature (Tms)
1.4.5 Depth
1.4.6 Effective seal
1.4.7 Effective sealing length
SECTION 2 GENERAL REQUIREMENTS
2.1 SCOPE
2.2 MATERIAL
2.2.1 Reprocessable and recyclable polyethylene material
2.3 THERMAL STABILITY
2.4 TENSILE PROPERTIES
2.5 SLOW CRACK GROWTH RESISTANCE
2.6 MATERIAL DATA SHEETS
2.7 WEATHERING RESISTANCE FOR HANDLING AND STORAGE
2.8 CARBON BLACK
2.9 DISPERSION
2.10 FREEDOM FROM DEFECTS
2.10.1 General
2.10.2 Ends
2.10.3 Joints
2.11 REQUIREMENTS FOR ELASTOMERIC SEALS
2.12 ADHESIVE JOINTS
2.13 REQUIREMENTS FOR MS RISER SECTIONS
2.14 PACKAGING, STORAGE AND TRANSPORTATION
SECTION 3 DESIGN
3.1 GENERAL
3.2 ACCESSIBILITY
3.3 CHAMBER WALL THICKNESS
3.4 STRUCTURAL INTEGRITY OF THE CHAMBER
3.4.1 General
3.4.2 Design verification by structural analysis
3.4.3 Design verification by type tests
3.5 RISER
3.5.1 Riser stiffness
3.5.2 Riser and riser joint load resistance
SECTION 4 MANUFACTURE
4.1 CONFIGURATIONS
4.2 DIMENSIONS AND TOLERANCES
4.2.1 General
4.2.2 Riser
4.2.3 Chamber wall thickness
4.3 WELDING
4.3.1 Welding
4.3.2 Training and Certification
SECTION 5 PERFORMANCE REQUIREMENTS
5.1 GENERAL
5.2 VACUUM TEST
5.3 ACCESSIBILITY
5.4 WELDED JOINTS
5.5 ELASTOMERIC SEAL JOINTS
5.5.1 General
5.5.2 Hydrostatic pressure test
5.5.3 Liquid infiltration test
5.5.4 Contact width and pressure
5.5.5 Load resistance of MS riser and joints
5.6 VACUUM-BATCH RELEASE TEST (BRT)
5.7 THERMAL STABILITY-BATCH RELEASE TEST (BRT)
SECTION 6 MARKING REQUIREMENTS
6.1 MARKING
6.2 ADDITIONAL MARKING WITH ADHESIVE LABEL
APPENDIX A - COMPLIANCE WITH THIS STANDARD
A1 SCOPE
A2 RELEVANCE
A3 DEFINITIONS
A1.1 Acceptable quality level (AQL)
A1.2 Batch
A1.3 Batch release test (BRT)
A1.4 Inspection level
A1.5 Lot
A1.6 Process verification test (PVT)
A1.7 Sample
A1.8 Sampling plan
A1.9 Type test (TT)
A4 PRODUCT CERTIFICATION
A5 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A5.1 General
A5.2 Retesting
A5.3 Rejection after retest
APPENDIX B - REQUIREMENTS FOR STRUCTURAL ANALYSIS
B1 SCOPE
B2 PRINCIPLE
B3 REQUIREMENTS
B4 TEST REPORT
APPENDIX C - METHOD FOR LOAD TESTING
C1 SCOPE AND GENERAL
C1.1 Scope
C1.2 Relevance of test
C1.3 Preparation of test assemblies
C2 Apparatus
C3 TEST PROCEDURE
C3.1 Principle
C3.2 Procedure for load test
C3.3 Report
APPENDIX D - METHOD FOR DESIGN VERIFICATION BY TYPE TESTING
D1 SCOPE AND GENERAL
D1.1 Scope
D1.2 Relevance of test
D1.3 Preparation of test assemblies
D2 TYPE TEST
D2.1 Principle
D2.2 Apparatus
D2.3 Personnel
D2.4 Procedure
D3 TEST REPORT
AS/NZS 4798(Int):2005
Online Library subscription pricing
The cost of your subscription will depend on which standards you want to access, and how many people in your organisation need to be able to access the Online Library subscription at the same time (concurrent users). During your subscription period, we are also able to make any necessary changes and ensure you are aware of any pricing changes that result. For a quote, contact our Online Library team by emailing onlinelibrary@standards.govt.nz.