AS/NZS 4998:2009

1-AS/NZS 4998:2009 BOLTED UNRESTRAINED MECHANICAL COUPLINGS FOR WATERWORKS PURPOSES
4-PREFACE
5-CONTENTS
6-SECTION 1 SCOPE AND GENERAL
6-1.1 SCOPE
6-1.2 REFERENCED DOCUMENTS
8-1.3 DEFINITIONS
8-1.3.1 Allowable operating pressure (AOP)
8-1.3.2 Allowable site test pressure (ASTP)
8-1.3.3 Coating
8-1.3.4 Coating defect
8-1.3.5 Maximum allowable operating pressure (MAOP)
8-1.3.6 Mechanical coupling-Unrestrained
8-1.3.7 Mechanical coupling-Unrestrained flanged adaptor
8-1.3.8 Nominal pipe setting gap
8-1.3.9 Nominal size (DN)
8-1.3.10 Pressure classification (PN)
8-1.3.11 Reach
8-1.4 DESIGNATION OF SIZE
9-1.5 CLASSIFICATION
9-1.6 ALLOWABLE PRESSURES
10-SECTION 2 MATERIALS
10-2.1 MATERIAL REQUIREMENTS
10-2.2 DEZINCIFICATION-RESISTANT COPPER ALLOYS
10-2.3 POLYMERIC SYSTEMS
10-2.3.1 General
10-2.3.2 Polymeric coatings
10-2.4 ELASTOMERIC SEALS
10-2.5 EFFECT ON WATER
12-SECTION 3 DESIGN, MANUFACTURE AND OPERATIONAL LIMITATIONS
12-3.1 DESIGN
12-3.2 DIMENSIONS
12-3.3 FREEDOM FROM DEFECTS
12-3.4 NOMINAL JOINT DEFLECTION
12-3.5 NOMINAL PIPE SETTING GAP
13-3.6 COMPONENT JOINTING
13-3.6.1 Leaktightness
13-3.6.2 Fasteners
14-3.7 WELDING
14-3.7.1 Carbon steel
14-3.7.2 Stainless steel
15-SECTION 4 TESTING
15-4.1 TYPE TESTS
15-4.1.1 General
15-4.1.2 Hydrostatic leaktightness test
16-4.1.3 Joint infiltration test
16-4.1.4 Assembly test
16-4.2 POLYMERIC COATING TESTS
17-SECTION 5 MARKING AND PACKAGING
17-5.1 MARKING
17-5.2 PACKAGING
17-5.3 INSTALLATION INSTRUCTIONS
18-APPENDIX A - COMPLIANCE REQUIREMENTS
18-A1 SCOPE
18-A2 PRODUCT CERTIFICATION
18-A3 MINIMUM SAMPLING AND TESTING FREQUENCY PLAN
18-A3.1 General
18-A3.2 Retesting
19-A3.3 Rejection after retest
19-A4 DEFINITIONS
19-A4.1 Coupling batch
19-A4.2 Material batch
19-A4.3 Lot
19-A4.4 Sample
19-A4.5 Sampling plan
19-A4.6 Batch release test (BRT)
19-A4.7 Type test (TT)
22-APPENDIX B - TYPICAL COUPLING CONFIGURATIONS