ISO 20469:2018

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)

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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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