ISO 20469:2018 PDF

Name: ISO 20469:2018 — Guidelines for water quality grade classification for water reuse
SKU: ISO 20469:2018
Price: 25 EUR
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Guidelines for water quality grade classification for water reuse

Название (английский):

ISO 20469:2018

Guidelines for water quality grade classification for water reuse

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 5 ноября 2018 г.
Издание:: ISO IS 20469 edition 1 version 1
ICS:: 13.060.01

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Срок поставки:1 раб. дн. (перевод)

Цена:90 €

Описание (английский):

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.

Abstract

Overview - ISO 20469:2018 (water quality grade classification for water reuse)

Key topics and requirements

Three water quality grades:
- High - suitable where direct public access and/or body contact is likely (examples: toilet flushing, playground irrigation, landscape water features). Minimum examples of treatment: secondary treatment with filtration and disinfection.
- Medium - suitable for scenarios with limited or incidental body contact (examples: restricted urban irrigation, agricultural irrigation of processed food crops). Minimum examples of treatment: secondary treatment and disinfection.
- Fair - for uses without potential for public access or body contact (examples: landscape irrigation without public access, industrial/energy crop irrigation). Minimum examples of treatment: secondary treatment (high‑rate clarification with coagulation/flocculation or stabilization ponds).
Point‑of‑use display: grades must be clearly displayed where the reclaimed water is used, including application type and precautions (e.g., “Not drinking water”, “No swimming”, “Do not trespass”).
Local determination: jurisdictions, regulators or authorities determine appropriate grade assignments and prohibited uses based on local health risk assessment.
Complementary information recommended for displays: source water type, treatment type, prohibited uses, notifications for exposed persons, and commonly used symbols.

Practical applications and who uses this standard

ISO 20469 is intended for organizations involved in planning, operating and regulating non‑potable water reuse:

Municipal water and wastewater utilities
Urban planners and landscape architects
Irrigation project designers and agricultural managers
Industrial facilities using reclaimed water for cooling or processes
Public health authorities and regulators
System operators and facility managers responsible for signage and end‑use controls

Use cases include deciding minimum treatment needs for reclaimed water, designing labeling/signage at points of use, and integrating water quality grades into reuse permits, risk assessments, and public outreach.

Related standards

ISO 20469 references and aligns with other ISO guidance for water reuse and health risk:

ISO 20670 (vocabulary)
ISO 16075‑1/2/3/4 (treated wastewater use for irrigation projects)
ISO 20426 (health risk assessment and management for non‑potable reuse)
ISO 20468‑1 (performance evaluation of treatment technologies)
ISO 20760‑1/2 and ISO 20761 (urban water reuse guidelines and safety evaluation)

Keywords: ISO 20469, water reuse, reclaimed water, water quality grade, non‑potable reuse, wastewater reuse, water quality classification, public health protection.

Технические детали

Технический комитет: ISO/TC 282/SC 3 - Risk and performance evaluation of water reuse systems
SKU: ISO 20469:2018

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