Guidelines for water quality grade classification for water reuse

This document provides guidelines for water quality grade classification to help users determine the suitability and quality of the reclaimed water for safe non-potable reuse applications, based on the level of exposure. The intention is to enable the water quality grade to be identified at the point of use.

Lignes directrices pour la classification de la qualité de l’eau en vue de sa réutilisation

General Information

Status
Published
Publication Date
04-Nov-2018
Current Stage
9093 - International Standard confirmed
Completion Date
01-May-2024
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ISO 20469:2018 - Guidelines for water quality grade classification for water reuse
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INTERNATIONAL ISO
STANDARD 20469
First edition
2018-11
Guidelines for water quality grade
classification for water reuse
Lignes directrices pour la classification de la qualité de l’eau en vue de
sa réutilisation
Reference number
ISO 20469:2018(E)
©
ISO 2018

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ISO 20469:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
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Phone: +41 22 749 01 11
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2018 – All rights reserved

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ISO 20469:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Water quality grade classification for reuse application . 1
4.1 Water quality grade for reuse application . . 1
4.2 Water quality grade classification . 2
5 Display of water quality grades . 5
Bibliography . 6
© ISO 2018 – All rights reserved iii

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ISO 20469:2018(E)

Foreword
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on the ISO list of patent declarations received (see www .iso .org/patents).
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