AS/NZS 4131:2010
Polyethylene (PE) compounds for pressure pipes and fittings
Specifies requirements for polyethylene compounds (PE 80 and PE 100) suitable for manufacturing polyethylene pipes and fittings for pressure applications. Minimum requirements are given for materials, additives and long-term pressure performance. Methods of demonstrating compliance with this Standard are given in Appendix A. Compounds complying with this Standard are not intended for use with gas containing more than 1% aromatics by volume. Where aromatic content is greater than this, testing for resistance to gas constituents should be carried out in accordance with ISO 4437.
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AS/NZS 4131:2010 POLYETHYLENE (PE) COMPOUNDS FOR PRESSURE PIPES AND FITTINGS -
PREFACE
CONTENTS
1 SCOPE AND APPLICATION
1.1 Scope
1.2 Application
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Brittle failure
3.2 Ductile mode
3.3 Hoop stress
3.4 Knee
3.5 Lower prediction limit of the predicted hydrostatic strength (LPL)
3.6 Minimum required strength (MRS)
3.7 Test pressure
4 COMPOSITION
4.1 General
4.1.1 Compounds
4.1.2 Melt flow rate (MFR)
4.1.3 Density
4.2 Additives
4.2.1 Thermal stability
4.2.2 Carbon black
4.3 Coloured compounds
4.3.1 Yellow
4.3.2 Blue
4.3.3 Purple
4.3.4 Other colours
4.3.5 Dispersion
5 VOLATILE CONTENT
6 CLASSIFICATION
6.1 Minimum required strength
6.2 Rapid crack propagation resistance
7 RESISTANCE TO INTERNAL PRESSURE
8 SLOW CRACK GROWTH RESISTANCE
9 WEATHERING RESISTANCE
10 EFFECT ON WATER
11 MARKING
APPENDIX A - MEANS FOR DEMONSTRATING CONFORMITY WITH THIS STANDARD
A1 SCOPE
A2 RELEVANCE
A3 DEFINITIONS
A3.1 Acceptable quality level (AQL)
A3.2 Batch
A3.3 Batch release test (BRT)
A3.4 Inspection level
A3.5 Lot
A3.6 New formulation
A3.7 Process verification test (PVT)
A3.8 Sample
A3.9 Sampling plan
A3.10 Type test (TT)
A4 PRODUCT CERTIFICATION
A5 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A5.1 General
A5.2 Testing
A5.3 Retesting
A5.4 Rejection after test
A6 TYPE TESTING FOR RE-EVALUATION
A6.1 Change in compound
A6.2 New Compound
A6.3 Change to requirements of Paragraph A6.1(b), A6.1(c), A6.1(d)(ii), A6.1(e)
APPENDIX B - METHOD FOR DETERMINING WEATHERING RESISTANCE FOR EXTERNAL STORAGE
B1 SCOPE
B2 APPLICATION
B3 APPARATUS
B4 EXPOSURE SITE
B5 PROVISION OF TEST SPECIMENS
B6 PROCEDURE
B7 REPORT
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AS/NZS 4131:2010 POLYETHYLENE (PE) COMPOUNDS FOR PRESSURE PIPES AND FITTINGS -
PREFACE
CONTENTS
1 SCOPE AND APPLICATION
1.1 Scope
1.2 Application
2 REFERENCED DOCUMENTS
3 DEFINITIONS
3.1 Brittle failure
3.2 Ductile mode
3.3 Hoop stress
3.4 Knee
3.5 Lower prediction limit of the predicted hydrostatic strength (LPL)
3.6 Minimum required strength (MRS)
3.7 Test pressure
4 COMPOSITION
4.1 General
4.1.1 Compounds
4.1.2 Melt flow rate (MFR)
4.1.3 Density
4.2 Additives
4.2.1 Thermal stability
4.2.2 Carbon black
4.3 Coloured compounds
4.3.1 Yellow
4.3.2 Blue
4.3.3 Purple
4.3.4 Other colours
4.3.5 Dispersion
5 VOLATILE CONTENT
6 CLASSIFICATION
6.1 Minimum required strength
6.2 Rapid crack propagation resistance
7 RESISTANCE TO INTERNAL PRESSURE
8 SLOW CRACK GROWTH RESISTANCE
9 WEATHERING RESISTANCE
10 EFFECT ON WATER
11 MARKING
APPENDIX A - MEANS FOR DEMONSTRATING CONFORMITY WITH THIS STANDARD
A1 SCOPE
A2 RELEVANCE
A3 DEFINITIONS
A3.1 Acceptable quality level (AQL)
A3.2 Batch
A3.3 Batch release test (BRT)
A3.4 Inspection level
A3.5 Lot
A3.6 New formulation
A3.7 Process verification test (PVT)
A3.8 Sample
A3.9 Sampling plan
A3.10 Type test (TT)
A4 PRODUCT CERTIFICATION
A5 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
A5.1 General
A5.2 Testing
A5.3 Retesting
A5.4 Rejection after test
A6 TYPE TESTING FOR RE-EVALUATION
A6.1 Change in compound
A6.2 New Compound
A6.3 Change to requirements of Paragraph A6.1(b), A6.1(c), A6.1(d)(ii), A6.1(e)
APPENDIX B - METHOD FOR DETERMINING WEATHERING RESISTANCE FOR EXTERNAL STORAGE
B1 SCOPE
B2 APPLICATION
B3 APPARATUS
B4 EXPOSURE SITE
B5 PROVISION OF TEST SPECIMENS
B6 PROCEDURE
B7 REPORT
Previous versions
AS/NZS 4131:2010
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.