Skip to content
Please enter a keyword to search
  • Preview

    AS/NZS 3500.1.2:1998

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    National plumbing and drainage Water supply - Acceptable solutions

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  04-08-2023

    Language(s): 

    Published date:  05-02-1998

    Publisher:  Standards Australia

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    1 - AS/NZS 3500.1.2:1998 NATIONAL PLUMBING AND DRAINAGE - WATER SUPPLY-ACCEPTABLE SOLUTIONS
    4 - PREFACE
    5 - CONTENTS
    8 - FOREWORD
    9 - SECTION 1 SCOPE AND GENERAL
    9 - 1.1 SCOPE
    9 - 1.2 REFERENCED DOCUMENTS
    9 - 1.3 DEFINITIONS
    9 - 1.3.1 Deemed to satisfy
    9 - 1.3.2 Registered break tank
    9 - 1.4 CLASSIFICATION OF SOILS
    9 - 1.5 EQUIVALENT PIPE SIZES
    9 - 1.6 REQUIREMENTS FOR DISABLED PERSONS
    12 - SECTION 2 MATERIALS AND PRODUCTS
    12 - 2.1 SCOPE OF SECTION
    12 - 2.2 AUTHORIZATION
    12 - 2.3 SELECTION AND USE OF MATERIALS
    12 - 2.4 LIMITS ON USE OF PIPES AND FITTINGS
    12 - 2.4.1 Acrylonitrile butadiene styrene (ABS)
    12 - 2.4.2 Black steel pipes and fittings
    12 - 2.4.3 Cast iron fittings (grey cast iron)
    13 - 2.4.4 Copper
    13 - 2.4.5 Copper alloy
    13 - 2.4.6 Ductile iron
    13 - 2.4.7 Galvanized steel
    14 - 2.4.8 Polybutylene (PB)
    14 - 2.4.9 Polyethylene (PE)
    14 - 2.4.10 Cross-linked polyethylene (PE-X)
    14 - 2.4.11 Polypropylene (PP-R)
    15 - 2.4.12 Unplasticized polyvinyl chloride (UPVC)
    15 - 2.4.13 Chlorinated polyvinyl chloride (CPVC)
    15 - 2.4.14 Stainless steel
    16 - 2.5 STORAGE TANK MATERIALS
    16 - 2.6 JOINTING
    16 - 2.6.1 Elastomeric rings
    17 - 2.6.2 Elastomeric gaskets
    17 - 2.6.3 Silver brazing alloy
    17 - 2.6.4 Soft solders
    17 - 2.6.5 Rolled grooved joints
    17 - 2.7 CONCRETE AND MORTAR
    17 - 2.7.1 Cement
    17 - 2.7.2 Fine aggregate (sand)
    17 - 2.7.3 Coarse aggregate (metal)
    17 - 2.7.4 Concrete mix
    17 - 2.7.5 Cement mortar
    17 - 2.7.6 Chemical admixtures
    17 - 2.7.7 Water for concrete and mortar
    17 - 2.7.8 Steel reinforcement
    18 - 2.8 MISCELLANEOUS MATERIALS
    18 - 2.8.1 Timber
    18 - 2.8.2 Thermal insulation
    18 - 2.8.3 External protective coatings
    18 - 2.9 SAFE TRAY AND SAFE WASTE MATERIALS
    18 - 2.9.1 Safe tray
    18 - 2.9.2 Safe wastes
    18 - 2.10 BACKFLOW PREVENTION DEVICES
    19 - SECTION 3 SiZING OF WATER SERVICES
    19 - 3.1 SCOPE OF SECTION
    19 - 3.2 FLOW REQUIREMENTS
    19 - 3.2.1 Water flow rates at outlets
    19 - 3.2.2 Loading units
    19 - 3.2.3 Probable simultaneous demand
    19 - 3.2.4 Probable simultaneous flow rate
    19 - 3.3 PRESSURE REQUIREMENTS
    19 - 3.3.1 Available pressure
    20 - 3.3.2 Pressure at outlets
    20 - 3.3.3 Head losses
    20 - 3.4 VELOCITY REQUIREMENTS
    20 - 3.5 PIPE SIZE LIMITATIONS
    20 - 3.5.1 Water service
    20 - 3.5.2 Branch offtakes
    23 - SECTION 4 CROSS-CONNECTION CONTROL AND BACKFLOW PREVENTION
    23 - 4.1 SCOPE OF SECTION
    23 - 4.2 PROTECTION OF POTABLE WATER SUPPLIES
    23 - 4.2.1 Design
    23 - 4.2.2 Quality of water supply
    23 - 4.2.3 Introduction of contaminants
    23 - 4.2.4 Combined tanks serving flush valves (other than directly connected)
    23 - 4.2.5 Alternative water supplies
    24 - 4.2.6 Authorized fixtures, appliances or apparatus
    24 - 4.3 CROSS-CONNECTION HAZARD RATING
    24 - 4.4 PROVISION OF BACKFLOW PREVENTION DEVICES
    24 - 4.4.1 General
    24 - 4.4.2 Type of backflow protection
    24 - 4.4.3 Hose taps
    24 - 4.4.4 Additional backflow protection
    24 - 4.4.5 Water downstream of backflow prevention device
    25 - 4.4.6 Inspection and maintenance
    25 - 4.4.7 Hot water systems
    25 - 4.5 SUITABILITY OF DEVICES FOR HAZARDS
    28 - 4.6 INSTALLATION OF BACKFLOW PREVENTION DEVICES
    28 - 4.6.1 General installation requirements
    28 - 4.6.2 Location of devices
    29 - 4.6.3 Specific installation requirements for testable and non- testable devices
    32 - SECTION 5 INSTALLATION OF COLD WATER SERVICES
    32 - 5.1 SCOPE OF SECTION
    32 - 5.2 ELECTRICAL SAFETY PRECAUTIONS EARTHING
    32 - 5.3 PROXIMITY TO OTHER SERVICES
    32 - 5.3.1 Electrical cables and gaspipes
    32 - 5.3.2 Drains
    33 - 5.4 ISOLATING VALVES
    33 - 5.4.1 General
    33 - 5.4.2 Maintenance
    33 - 5.5 LOCATION AND ACCESS WITHIN AND UNDER BUILDINGS
    33 - 5.5.1 Location
    34 - 5.5.2 Concealed piping
    35 - 5.6 METHODS OF JOINTING
    35 - 5.6.1 General
    36 - 5.6.2 Threading
    36 - 5.6.3 Bolted-gland and gibault type joints
    36 - 5.6.4 Non-metallic friction locked joints
    36 - 5.6.5 Compression joints
    36 - 5.6.6 Capillary fittings
    36 - 5.6.7 Flanged joints
    36 - 5.6.8 Elastomeric ring joints
    36 - 5.6.9 Shouldered or grooved joints
    37 - 5.6.10 Silver brazing
    37 - 5.6.11 Soft soldering
    37 - 5.6.12 Solvent cement joints
    37 - 5.6.13 Jointing of stainless steel pipe and fittings
    37 - 5.7 SUPPORT AND FIXING ABOVE GROUND
    37 - 5.7.1 General
    37 - 5.7.2 Brackets, clips and hangers
    38 - 5.7.3 Prohibited supports
    38 - 5.7.4 Spacing
    39 - 5.8 STANDPIPES
    39 - 5.9 ANCHORAGE BELOW GROUND
    39 - 5.9.1 General
    39 - 5.9.2 Location of thrust blocks (see Figure 5.2)
    39 - 5.9.3 Construction of thrust blocks
    39 - 5.9.4 Curing time for thrust blocks
    39 - 5.10 DEPTH OF COVER IN PUBLIC AREAS
    39 - 5.11 DEPTH OF COVER IN PRIVATE AREAS
    41 - 5.12 BEDDING AND BACKFILL
    42 - 5.13 CONTAMINATED AREAS
    42 - 5.13.1 General
    42 - 5.13.2 Installation
    42 - 5.14 CORROSIVE AREAS
    42 - 5.14.1 General
    42 - 5.14.2 Galvanic corrosion
    42 - 5.15 WATER- CHARGED OR FILLED GROUND
    42 - 5.16 OPEN CHANNELS OR WATERCOURSES
    42 - 5.17 PRIVATE EASEMENTS
    42 - 5.17.1 Proximity of water services
    42 - 5.17.2 Depth of piping
    42 - 5.18 DRY SERVICES
    43 - 5.19 FROST PROTECTION
    43 - 5.19.1 Requirement for protection
    43 - 5.19.2 Piping located outside buildings
    43 - 5.19.3 Pipes located on metal roofs
    43 - 5.19.4 Pipes located inside buildings
    43 - 5.19.5 Insulation of piping
    44 - 5.20 GENERAL PRECAUTIONS FOR PLASTICS PIPES AND FITTINGS
    44 - 5.21 IDENTIFICATION
    44 - 5.22 THERMOSTATIC MIXING VALVES
    45 - SECTION 6 FIRE SERVICES
    45 - 6.1 SCOPE OF SECTION
    45 - 6.2 GENERAL
    45 - 6.3 MATERIALS AND PRODUCTS
    45 - 6.4 INSTALLATION
    45 - 6.5 WATER SUPPLY TO A FIRE HYDRANT OR SPRINKLER SERVICE
    45 - 6.6 FIRE HYDRANTS
    45 - 6.6.1 General
    45 - 6.6.2 Fabrication of steel fittings
    45 - 6.7 HOSE REELS
    45 - 6.8 FIRE SPRINKLER SERVICES
    45 - 6.8.1 General
    45 - 6.8.2 Sprinkler valve assembly
    45 - 6.9 WINDOW OR WALL DRENCHER SPRINKLER SYSTEM
    46 - 6.10 WATER STORAGE TANKS
    46 - 6.11 PRESSURE REDUCTION
    46 - 6.12 PUMPS
    46 - 6.13 IDENTIFICATION
    47 - SECTION 7 IRRIGATION AND LAWN-WATERING SYSTEMS
    47 - 7.1 SCOPE OF SECTION
    47 - 7.2 SYSTEM TYPES
    47 - 7.3 BACKFLOW PROTECTION REQUIREMENTS
    47 - 7.4 MATERIALS
    53 - SECTION 8 WATER STORAGE TANKS
    53 - 8.1 SCOPE OF SECTION
    53 - 8.2 PURPOSE OF TANKS
    53 - 8.2.1 General
    53 - 8.2.2 Limitations on use
    53 - 8.3 TANK MATERIALS
    53 - 8.3.1 Permitted materials
    53 - 8.3.2 Prohibited materials
    53 - 8.4 INSTALLATION
    53 - 8.4.1 General
    54 - 8.4.2 Access
    54 - 8.4.3 Internal corrosion protection
    54 - 8.4.4 Location
    54 - 8.5 TANK DESIGN
    54 - 8.5.1 General
    55 - 8.5.2 Tank cover
    55 - 8.5.3 Safe-tray
    55 - 8.5.4 Placement of tank
    55 - 8.5.5 Size of air gap
    55 - 8.5.6 Tank overflow
    59 - 8.6 CAPACITY OF STORAGE TANKS
    59 - 8.6.1 Measurement of capacity
    60 - 8.6.2 Contingency reserve
    60 - 8.7 INLET PIPING
    60 - 8.7.1 Connections
    60 - 8.7.2 Stop valve
    60 - 8.8 OUTLET PIPING
    60 - 8.8.1 Connections
    60 - 8.8.2 Service outlets
    60 - 8.9 SLUDGE VALVES
    60 - 8.10 FIRE SERVICES TANKS
    60 - 8.11 MARKING OF TANKS
    61 - SECTION 9 WATER FOR SANITARY FLUSHING
    61 - 9.1 SCOPE OF SECTION
    61 - 9.2 GENERAL
    61 - 9.3 FLUSHING REQUIREMENTS
    61 - 9.4 URINALS
    61 - 9.4.1 Quantity of flushing water
    62 - 9.4.2 Automatic cisterns
    62 - 9.4.3 Programmed flushing systems
    62 - 9.4.4 Flushing devices operated on demand
    62 - 9.4.5 Location of flush valves
    62 - 9.5 INSTALLATION OF CISTERNS
    62 - 9.5.1 General
    62 - 9.5.2 Urinal type cisterns
    62 - 9.5.3 Manually operated cisterns
    62 - 9.5.4 Water closet pan and slop hopper pan type cisterns
    62 - 9.6 FLUSH VALVES SUPPLIED FROM BREAK TANKS
    62 - 9.6.1 General
    62 - 9.6.2 Capacity
    62 - 9.6.3 Operating head
    62 - 9.6.4 Urinal type flush valves
    63 - 9.7 FLUSH PIPES AND WATER FLOW DISTRIBUTION
    63 - 9.8 PRESSURE RATIO VALVES
    63 - 9.8.1 General
    63 - 9.8.2 Requirement for pressure gauges
    64 - 9.9 FLUSH VALVES CONNECTED TO THE POTABLE WATER SERVICE
    64 - 9.9.1 General
    64 - 9.9.2 Compatibility
    64 - 9.9.3 Pipe size
    64 - 9.9.4 Protection
    64 - 9.9.5 Location
    64 - 9.9.6 Pressure and velocity limitations
    64 - 9.9.7 Branch service pipe
    66 - SECTION 10 PUMPS
    66 - 10.1 SCOPE OF SECTION
    66 - 10.2 GENERAL
    66 - 10.3 CONTROL OF PUMPS
    66 - 10.4 INSTALLATION OF PUMPS
    66 - 10.5 BOOSTER PUMPS
    67 - SECTION 11 WATER REQUIREMENTS FOR HAEMODIALYSIS MACHINES
    67 - 11.1 SCOPE OF SECTION
    67 - 11.2 CONNECTION TO THE WATER SERVICE
    67 - 11.3 MAINTENANCE OF FLOW RATE
    67 - 11.4 WATER METER IDENTIFICATION
    68 - SECTION 12 INSTALLATION OF WATER METERS
    68 - 12.1 SCOPE OF SECTION
    68 - 12.2 LOCATION OF WATER METERS
    68 - 12.3 INSTALLATION OF WATER METERS
    68 - 12.3.1 General
    68 - 12.3.2 Inside buildings
    68 - 12.3.3 Below ground
    68 - 12.4 PROTECTION
    68 - 12.5 ELECTRICAL SAFETY PRECAUTIONS
    68 - 12.6 SUPPORT
    68 - 12.7 FROST PROTECTION
    69 - SECTION 13 TESTING AND COMMISSIONING
    69 - 13.1 SCOPE OF SECTION
    69 - 13.2 TESTING
    69 - 13.2.1 Hydrostatic test
    69 - 13.2.2 Storage tanks
    69 - 13.3 CLEANING AND DISINFECTION OF STORAGE TANKS
    69 - 13.4 DISINFECTION OF WATER SERVICES
    69 - 13.5 COMMISSIONING
    70 - APPENDIX A - REFERENCED DOCUMENTS
    73 - APPENDIX B - SIZING METHOD FOR SUPPLY PIPING FOR DWELLINGS
    73 - B1 GENERAL
    73 - B2 PROCEDURE
    80 - APPENDIX C - SIZING OF PIPING FOR DWELLINGS
    80 - C1 GENERAL
    80 - C2 PROCEDURE
    81 - C3 EXAMPLE
    83 - APPENXIX D - EXAMPLES OF POTENTIAL CROSS- CONNECTIONS
    83 - D1 SCOPE
    83 - D2 POTENTIAL CROSS- CONNECTIONS
    85 - APPENDIX E - TYPES OF BACKFLOW PROTECTION
    85 - E1 GENERAL
    94 - APPENDIX F - STORAGE TANKS-INFLOW AND OVERFLOW
    94 - F1 GENERAL
    94 - F2 INFLOW RATE
    94 - F3 OVERFLOW SIZE AND SPILLING LEVEL
    94 - F4 AIR GAP
    94 - F5 HEIGHT OF INLET ABOVE INVERT LEVEL OF OVERFLOW
    96 - APPENDIX G - CLEANING AND DISINFECTION OF STORAGE TANKS
    96 - G1 GENERAL
    96 - G2 CLEANING
    96 - G3 DISINFECTION
    97 - APPENDIX H - DISINFECTION OF WATER SERVICES
    97 - H1 GENERAL
    97 - H2 PRECAUTIONS AGAINST CONTAMINATION
    97 - H3 FLUSHING OF WATER SERVICES
    97 - H4 CHLORINATION
    97 - H5 FINAL FLUSHING
    99 - AMENDMENT CONTROL SHEET

    Abstract - (Show below) - (Hide below)

    Specifies the requirements for the installation of water services from the authority's water main or alternative portable water supplies to the points of discharge. The standard applies to new installations as well as alterations, additions and repairs to existing installations.

    Scope - (Show below) - (Hide below)

    This Standard sets out the requirements for the installation of water services from the authority's water main or alternative potable water supplies to the points of discharge. This Standard applies to new installations as well as alterations, additions and repairs to existing installations.Illustrations used in this Standard are diagrammatic only and have been chosen without prejudice.Construction of a water supply installation in accordance with this Standard is deemed to satisfy the requirements of AS 3500.1.1 for Australia. This Standard may be used as an alternative acceptable solution to Clause G12 of the New Zealand Building Code but may exceed the performance requirements.NOTE: The requirements for hot water services are set out in AS/NZS 3500.4.2

    General Product Information - (Show below) - (Hide below)

    Committee WS-014
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes
    Under Revision

    History - (Show below) - (Hide below)

    Amendment 1 see DR 02019 CP. Draft Amendment 2 see DR 02312 CP. Under Revision see DR 03199 First published in Australia as AS 3500.1-1990.Second edition 1992.Jointly revised and redesignated AS/NZS 3500.1.2:1998. Originated in Australia as AS 3500.1-1990. Final Australian edition AS 3500.1-1992. Jointly revised and redesignated as AS/NZS 3500.1.2:1998. Reissued incorporating Amendment No. 1 (August 2002).

    Standards Referenced By This Book - (Show below) - (Hide below)

    AS 2865-1995 Safe working in a confined space
    AS 2441-1988 Installation of fire hose reels
    AS/NZS 1477:1999 PVC pipes and fittings for pressure applications
    AS 2033-1980 Installation of polyethylene pipe systems
    AS/NZS 2544:1995 Grey iron pressure fittings
    AS 2878-1986 Timber - Classification into strength groups
    AS 3688-1994 Water supply - Copper and copper alloy body compression and capillary fittings and threaded-end connectors
    AS 1478-1992 Chemical admixtures for concrete
    AS 1657-1992 Fixed platforms, walkways, stairways and ladders - Design, construction and installation
    AS 2941-1995 Fixed fire protection installations - Pumpset systems
    AS 1074-1989 Steel tubes and tubulars for ordinary service (Reconfirmed 2018)
    AS 2758.1-1998 Aggregates and rock for engineering purposes - Concrete aggregates
    AS 2118.1-1995 Automatic fire sprinkler systems - Standard
    AS 3600-1994 Concrete structures
    AS 2129-1994 Flanges for pipes, valves and fittings
    AS/NZS 2845.1:1998 Water supply - Backflow prevention devices Materials, design and performance requirements
    AS 1432-1996 Copper tubes for plumbing, gasfitting and drainage applications
    AS 1319-1994 Safety signs for the occupational environment (Reconfirmed 2018)
    AS 2845.3-1993 Water supply - Backflow prevention devices Field testing and maintenance
    AS 2492-1994 Cross-linked polyethylene (PE-X) pipe for hot and cold water applications
    AS/NZS 2280:1999 Ductile iron pressure pipes and fittings
    AS 1167.1-1993 Welding and brazing - Filler metals Filler metal for brazing and braze welding
    AS/NZS 4331.2:1995 Metallic flanges Cast iron flanges (Reconfirmed 2020)
    AS/NZS 3879:1995 Solvent cements and priming fluids for use with unplasticized PVC (uPVC) pipes and fittings
    AS 1726-1993 Geotechnical site investigations
    AS/NZS 3500.0:1995 National Plumbing and Drainage Code Glossary of terms
    AS 1302-1991 Steel reinforcing bars for concrete
    AS 3972-1997 Portland and blended cements
    AS 2419.1-1994 Fire hydrant installations - System design, installation and commissioning
    AS 1304-1991 Welded wire reinforcing fabric for concrete
    AS 3500.1.1-1998 National plumbing and drainage Water supply - Performance requirements
    AS 4118.1.1-1996 Fire sprinkler systems Components - Sprinklers and sprayers (Reconfirmed 2013)
    AS 2032-1977 Code of practice for installation of UPVC pipe systems
    AS 1428.1-1993 Design for access and mobility General requirements for access - Buildings
    AS 1172.2-1999 Water closet (WC) pans of 6/3 L capacity or proven equivalent - Cisterns
    AS 1379-1997 Specification and supply of concrete
    AS/NZS 3500.4.2:1997 National Plumbing and Drainage Hot water supply systems - Acceptable solutions
    AS/NZS 4331.1:1995 Metallic flanges Steel flanges (Reconfirmed 2020)
    AS 3855-1994 Suitability of plumbing and water distribution systems products for contact with potable water
    AS 1604-1997 Timber - Preservative-treated - Sawn and round
    AS/NZS 2648.1:1995 Underground marking tape Non-detectable tape (Reconfirmed 2020)
    AS/NZS 2642.2:1994 Polybutylene pipe systems - Polybutylene (PB) pipe for hot and cold water applications
    AS/NZS 4331.3:1995 Metallic flanges Copper alloy and composite flanges (Reconfirmed 2020)
    AS 1646-1992 Elastomeric seals for waterworks purposes
    AS 1345-1995 Identification of the contents of pipes, conduits and ducts (Reconfirmed 2018)
    AS 1449-1994 Wrought alloy steels - Stainless and heat-resisting steel plate, sheet and strip
    AS/NZS 1260:1999 PVC pipes and fittings for drain, waste and vent applications

    Standards Referencing This Book - (Show below) - (Hide below)

    AS 3496-1999 Metal-bodied and plastic-bodied taps
    AS 3565.1-1998 Meters for cold potable water - Volumetric chamber and turbine meters
    AS 4674-2004 Design, construction and fit-out of food premises
    AS 3500.1.1-1998 National plumbing and drainage Water supply - Performance requirements
    AS/NZS 3500.4.2:1997 National Plumbing and Drainage Hot water supply systems - Acceptable solutions
    AS 1940-2004 The storage and handling of flammable and combustible liquids
    AS 2050-2002 Installation of roof tiles
    AS 4809-2003 Copper pipe and fittings - Installation and commissioning
    ATS 5200.037.2-2005 Technical Specification for plumbing and drainage products Flow controllers - For use in heated or cold water plumbing systems
    AS/NZS 3666.1:2002 Air-handling and water systems of buildings - Microbial control Design, installation and commissioning
    AS/NZS 3718:2003 Water supply - Tap ware
    AS 1172.2-1999 Water closet (WC) pans of 6/3 L capacity or proven equivalent - Cisterns
    AS/NZS 3500.5:2000 National Plumbing and Drainage - Domestic installations
    AS/NZS 3497:1998 Drinking water treatment units - Plumbing requirements
    MP 52-2001 Manual of authorization procedures for plumbing and drainage products
    AS/NZS 3666.2:2002 Air-handling and water systems of buildings - Microbial control Operation and maintenance
    AS 4796-2001 Water supply - Metal bodied and plastic bodied ball valves for property service connection
    AS 2118.1-2006 Automatic fire sprinkler systems General systems
    AS/NZS 6400:2003 Water efficient products - Rating and labelling
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective