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AS
AS 2845.2-2010

AS 2845.2-2010

Current

Current

The latest, up-to-date edition.

Water supply - Backflow preventions devices Registered air gaps and registered break tanks

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

30-06-2010

Publisher

Standards Australia

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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1 - AS 2845.2-2010 WATER SUPPLY-BACKFLOW PREVENTIONS DEVICES - REGISTERED AIR GAPS AND REGISTERED BREAK TANKS
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 NORMATIVE REFERENCES
7 - 3 DEFINITIONS
7 - 3.1 Air gap-Water supply system
7 - 3.2 Accessible
7 - 3.3 Break tank
7 - 3.4 Register
7 - 3.5 Spill level
8 - 3.6 Storage tank
8 - 4 DESIGN
8 - 4.1 General
8 - 4.2 Break tanks
8 - 4.2.1 General
9 - 4.2.2 Type A break tank unobstructed air gap
9 - 4.2.3 Type B break tank air gap with overflow
11 - 4.2.4 Type C break tank air gap with diverter and overflow
12 - 4.2.5 Type E hygienic break tank
12 - 5 MARKING
12 - 5.1 Air gaps
12 - 5.2 Break tanks
13 - APPENDIX A - STORAGE TANKS-INFLOW AND OVERFLOW METHOD OF CALCULATION
13 - A1 GENERAL
13 - A2 INFLOW RATE
16 - A3 OVERFLOW SIZE AND SPILL LEVEL
17 - A4 AIR GAP
17 - A5 HEIGHT OF INLET ABOVE INVERT LEVEL OF OVERFLOW

Specifies requirements for registered air gaps including those incorporated in break tanks used as backflow prevention devices for the protection of water supplies.

Committee
WS-023
DevelopmentNote
Standard has been given Pending Revision status.
DocumentType
Standard
ISBN
978 0 7337 9598 5
Pages
12
ProductNote
Pending Revision indicates that as a result of the Aged Standards review process, the document needs updating. If no project proposal, meeting the quality criteria, is received within the 12 month timeframe, the document shall be withdrawn.
PublisherName
Standards Australia
Status
Current
Supersedes

This Standard specifies requirements for registered air gaps, including those incorporated in break tanks, used as backflow prevention devices for the protection of water supplies.

First published as AS 2845.2-1994.
Third edition 2010.

AS 2845.3-2010 Water supply - Backflow prevention devices Field testing and maintenance of testable devices
AS/NZS 3500.1:2003 Plumbing and drainage Water services
AS/NZS 2845.1:1998 Water supply - Backflow prevention devices Materials, design and performance requirements

AS 2845.3-2010 Water supply - Backflow prevention devices Field testing and maintenance of testable devices
AS/NZS 3500.1:2018 Plumbing and drainage Water Services
AS/NZS 3500.5:2012 Plumbing and drainage Housing installations
AS/NZS 2845.3:2020 Water supply - Backflow prevention devices Field testing and maintenance of testable devices
AS 4233.2:2013 High pressure water jetting systems Construction and performance

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