AS NZS 3500.2 2003 Plumbing and drainage Part 2 Sanitary plumbing and drainage

CONTENTS

	Page
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE AND APPLICATION	7
1.2 REFERENCED DOCUMENTS	7
1.3 DEFINITIONS	7
1.4 PLASTICS ABBREVIATIONS	8
1.5 MEASUREMENT OF PIPE LENGTH	8
1.6 PIPE GRADES	8
SECTION 2 MATERIALS AND PRODUCTS
2.1 SCOPE OF SECTION	9
2.2 AUTHORIZATION	9
2.3 SELECTION AND USE OF MATERIALS	9
2.4 LIMITATIONS ON THE USE OF PIPES AND FITTINGS	9
2.5 SHEET MATERIALS	10
2.6 JOINTS	11
2.7 CONCRETE AND MORTAR	11
2.8 MISCELLANEOUS	12
SECTION 3 DRAINAGE DESIGN
3.1 SCOPE OF SECTION	13
3.2 LOCATION OF DRAINS	13
3.3 SIZE AND LENGTH OF DRAINS	13
3.4 GRADES OF DRAINS	15
3.5 LAYING OF DRAINS	16
3.6 PROXIMITY TO OTHER SERVICES	17
3.7 DEPTH OF COVER	19
3.8 BUILDING OVER DRAINS	20
3.9 VENTING OF DRAINS	21
3.10 UNVENTED BRANCH DRAINS	24
3.11 UNVENTED DRAINS DISCHARGING TO GULLIES	26
3.12 INLET PIPE TO DISCONNECTOR GULLY	26
3.13 RESTRICTION ON CONNECTIONS IN PROXIMITY TO A STACK	26
3.14 CONNECTION OF BASEMENT FIXTURES	26
3.15 CONNECTIONS IN FLOOD-PRONE AREAS	26
3.16 RE-USE OF EXISTING DRAINS	27
3.17 DRAINS IN CARAVAN PARKS	27
3.18 VACUUM SYSTEMS	30
3.19 COMMON EFFLUENT DRAINAGE SYSTEM	31
SECTION 4 DRAINAGE SYSTEM
4.1 SCOPE OF SECTION	35
4.2 POINT OF CONNECTION	35
4.3 DRAINS	35
4.4 INSPECTION SHAFTS AND BOUNDARY TRAPS	36
4.5 REFLUX VALVES	38
4.6 GULLIES	39
4.7 INSPECTION OPENINGS (IO)	49
4.8 INSPECTION CHAMBERS	51
4.9 JUNCTIONS IN DRAINS	53

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AS/NZS 3500.2:2003

This Joint Australian/New Zealand Standard was prepared by Joint Technical Committee WS-014, National Plumbing and Drainage Code. It was approved on behalf of the Council of Standards Australia on 19 August 2003 and on behalf of the Council of Standards New Zealand on 22 August 2003. This Standard was published on 15 December 2003.

The following are represented on Committee WS-014:

• ACT Planning and Land Authority
• Association of Accredited Certification Bodies
• Association of Hydraulic Services Consultants Australia
• AUSTAP
• Australian Building Codes Board
• Australian Industry Group
• Australian Stainless Steel Development Association
• Copper Development Centre—Australia
• Department of Infrastructure, Energy and Resources (Tasmania)
• Department of Local Government, Planning, Sport and Recreation (Queensland)
• Gas Appliance Manufacturers Association of Australia
• Housing Industry Association
• Master Plumbers, Gasfitters and Drainlayers New Zealand
• New Zealand Water and Waste Association
• Plastics Industry Pipe Association of Australia
• Plastics New Zealand
• Plumbers Licensing Board of WA
• Plumbers, Gasfitters & Drainlayers Board
• Plumbing Industry Commission
• South Australian Water Corporation
• Sydney Water Corporation
• Water Services Association of Australia

Keeping Standards up-to-date

Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased.

Detailed information about joint Australian/New Zealand Standards can be found by visiting the Standards Web Shop at www.standards.com.au or Standards New Zealand web site at www.standards.co.nz and looking up the relevant Standard in the on-line catalogue.

Alternatively, both organizations publish an annual printed Catalogue with full details of all current Standards. For more frequent listings or notification of revisions, amendments and withdrawals, Standards Australia and Standards New Zealand offer a number of update options. For information about these services, users should contact their respective national Standards organization.

We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Please address your comments to the Chief Executive of either Standards Australia or Standards New Zealand at the address shown on the back cover.

This Standard was issued in draft form for comment as DR 03203.

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Australian/New Zealand Standard™

AS/NZS 3500.2:2003

(Incorporating Amendment Nos 1 and 2)

Plumbing and drainage

Part 2: Sanitary plumbing and drainage

Originated as AS 3500.2—1990.

Previous edition AS/NZS 3500.2:1996.

AS/NZS 3500.2.2:1996 jointly revised and redesignated as AS/NZS 3500.2:2003.

Reissued incorporating Amendment No. 1 (November 2005).

Reissued incorporating Amendment No. 2 (August 2006).

COPYRIGHT

© Standards Australia/Standards New Zealand

All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher.

Jointly published by Standards Australia, GPO Box 476, Sydney, NSW 2001 and Standards New Zealand, Private Bag 2439, Wellington 6020

ISBN 0 7337 5496 1

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PREFACE

This Standard was prepared by the Joint Standards Australia/Standards New Zealand Committee WS-014, National Plumbing and Drainage Code to supersede AS/NZS 3500.2.2:1996 National Plumbing and Drainage, Part 2.2: Sanitary plumbing and drainage—Acceptable solutions.

This Standard incorporates Amendments No. 1 (November 2005) and No. 2 (August 2006). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected.

The objective of this Standard is to provide installers with solutions to comply with—

(a) the Plumbing Code of Australia (PCA); and

(b) the New Zealand Building Code (Clause G13 Foul water).

This revision of this Standard has been develop to complement the Plumbing Code of Australia and incorporates amendments and additions arising from industry requirements.

This Standard is part of a series for plumbing and drainage, as follows:

AS/NZS

3500 Plumbing and drainage

3500.0 Part 0: Glossary of terms

3500.1 Part 1: Water services

3500.2 Part 2: Sanitary plumbing and drainage systems (this Standard)

3500.3 Part 3: Stormwater drainage systems

3500.4 Part 4: Heated water services.

3500.5 Part 5: Domestic installations

This revision includes the following changes:

(i) Alignment with the Plumbing Code of Australia (PCA).

(ii) Revision of the materials used in plumbing and drainage.

(iii) New provisions covering multi-unit development.

(iv) Incorporation of Amendments 1 and 2.

(v) PL-001 rulings 2002, Numbers 1 to 35.

The terms ‘normative’ and ‘informative’ have been used in this Standard to define the application of the appendix to which they apply. A ‘normative’ appendix is an integral part of a Standard, whereas an ‘informative’ appendix is only for information and guidance.

Where alternative Australian or New Zealand standards are referenced (such as AS 1345 or NZS 5807 as appropriate) the Australian Standard shall be used for Australia and the New Zealand Standard shall be used for New Zealand.

Statements expressed in mandatory terms in notes to figures and tables are deemed to be requirements of this Standard.

PROVISION FOR REVISION

This Standard necessarily deals with existing conditions, but is not intended to discourage innovation or to exclude materials, equipment and methods, which may be developed in future. Revisions will be made from time to time in view of such developments and amendments to this edition will be made only when absolutely necessary.

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CONTENTS

	Page
SECTION 1 SCOPE AND GENERAL
1.1 SCOPE AND APPLICATION	7
1.2 REFERENCED DOCUMENTS	7
1.3 DEFINITIONS	7
1.4 PLASTICS ABBREVIATIONS	8
1.5 MEASUREMENT OF PIPE LENGTH	8
1.6 PIPE GRADES	8
SECTION 2 MATERIALS AND PRODUCTS
2.1 SCOPE OF SECTION	9
2.2 AUTHORIZATION	9
2.3 SELECTION AND USE OF MATERIALS	9
2.4 LIMITATIONS ON THE USE OF PIPES AND FITTINGS	9
2.5 SHEET MATERIALS	10
2.6 JOINTS	11
2.7 CONCRETE AND MORTAR	11
2.8 MISCELLANEOUS	12
SECTION 3 DRAINAGE DESIGN
3.1 SCOPE OF SECTION	13
3.2 LOCATION OF DRAINS	13
3.3 SIZE AND LENGTH OF DRAINS	13
3.4 GRADES OF DRAINS	15
3.5 LAYING OF DRAINS	16
3.6 PROXIMITY TO OTHER SERVICES	17
3.7 DEPTH OF COVER	19
3.8 BUILDING OVER DRAINS	20
3.9 VENTING OF DRAINS	21
3.10 UNVENTED BRANCH DRAINS	24
3.11 UNVENTED DRAINS DISCHARGING TO GULLIES	26
3.12 INLET PIPE TO DISCONNECTOR GULLY	26
3.13 RESTRICTION ON CONNECTIONS IN PROXIMITY TO A STACK	26
3.14 CONNECTION OF BASEMENT FIXTURES	26
3.15 CONNECTIONS IN FLOOD-PRONE AREAS	26
3.16 RE-USE OF EXISTING DRAINS	27
3.17 DRAINS IN CARAVAN PARKS	27
3.18 VACUUM SYSTEMS	30
3.19 COMMON EFFLUENT DRAINAGE SYSTEM	31
SECTION 4 DRAINAGE SYSTEM
4.1 SCOPE OF SECTION	35
4.2 POINT OF CONNECTION	35
4.3 DRAINS	35
4.4 INSPECTION SHAFTS AND BOUNDARY TRAPS	36
4.5 REFLUX VALVES	38
4.6 GULLIES	39
4.7 INSPECTION OPENINGS (IO)	49
4.8 INSPECTION CHAMBERS	51
4.9 JUNCTIONS IN DRAINS	53

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