ISO 24528:2021 PDF

Service activities relating to drinking water supply, wastewater and stormwater systems — Guideline for a water loss investigation of drinking water distribution networks

Название (английский):

ISO 24528:2021

Service activities relating to drinking water supply, wastewater and stormwater systems — Guideline for a water loss investigation of drinking water distribution networks

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 60
Дата публикации:: 5 марта 2021 г.
Издание:: ISO IS 24528 edition 1 version 1
ICS:: 13.060.01

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Описание (английский):

This document provides a methodology for undertaking a water loss investigation and establishing general principles for water loss management in drinking water distribution networks in order to improve the sustainability of drinking water utilities and protect the environment by saving water, energy and use of chemicals. This document establishes a procedure to estimate water loss components through water balance calculations and to define general principles of water loss management. This document deals with the preparation of a water loss management plan for water loss reduction and management projects but does not cover its execution. This document does not cover bulk drinking water supply systems, but can relate to pumping, storage and transmission within the drinking water distribution network. This document can be used analogously for non-public supply systems, raw water and industrial water systems. This document is intended for drinking water utilities and other stakeholders.

Технические детали

Технический комитет: ISO/TC 224 - Drinking water, wastewater and stormwater systems and services
SKU: ISO 24528:2021

Abstract

Overview

ISO 24528:2021 - "Service activities relating to drinking water supply, wastewater and stormwater systems - Guideline for a water loss investigation of drinking water distribution networks" provides a standardized methodology for conducting water loss investigations in drinking water distribution networks. The standard establishes principles for water loss management to improve utility sustainability and protect the environment by saving water, energy and chemicals. It defines procedures to estimate water loss components using water balance calculations and guides the preparation (but not execution) of a water loss management plan. ISO 24528:2021 applies to public drinking water distribution networks and can be used analogously for non‑public supply, raw water and industrial water systems.

Key technical topics and requirements

Water loss investigation steps and scope definition - set objectives, define investigation area and time period, and select measurement units.
Data collection and validation - methods for collecting, validating and rating data quality used in water balance calculations.
Water balance calculation - procedures and parameters to quantify system input, exported water, billed and unbilled authorized use, non‑revenue water, apparent water loss and real water loss.
Performance indicators - selection and purposes of indicators to monitor and benchmark water loss.
Apparent vs. real water loss assessment - approaches for analyzing metering and billing errors, unauthorized use, background leakage, reported/unreported losses, bursts and overflows.
Cost assignment - methods to estimate the economic impact of apparent and real water losses.
Water loss management planning - general principles for preparing management plans, including district metered areas (DMA), active leakage control, pressure management, maintenance and rehabilitation planning.
Informative annexes - practical guidance on measurement methods, factors affecting leakage, Economic Leakage Level (ELL), leak detection technologies, night flow analysis, and uncertainty assessment.

Practical applications and users

Who uses ISO 24528:2021:

Drinking water utilities and operators
Asset and network managers responsible for non‑revenue water reduction
Consultants and engineers performing leakage assessments and DMA design
Regulators and policymakers developing performance targets and benchmarking
Industrial water managers adapting the methodology for non‑public systems

Practical uses:

Conducting systematic water loss investigations and producing defensible water balances
Prioritizing investments (leak detection, pressure control, meter replacement) based on cost impacts
Designing DMA programs and active leakage control strategies
Comparing performance using standardized indicators for reporting and benchmarking

Related standards

ISO 24528:2021 is published by ISO/TC 224 and complements other ISO and national guidance on water services, non‑revenue water and asset management practices. Users should consider coordination with local regulations and related ISO guidance for comprehensive water utility management.

Overview

Key technical topics and requirements

Water loss investigation steps and scope definition - set objectives, define investigation area and time period, and select measurement units.
Data collection and validation - methods for collecting, validating and rating data quality used in water balance calculations.
Water balance calculation - procedures and parameters to quantify system input, exported water, billed and unbilled authorized use, non‑revenue water, apparent water loss and real water loss.
Performance indicators - selection and purposes of indicators to monitor and benchmark water loss.
Apparent vs. real water loss assessment - approaches for analyzing metering and billing errors, unauthorized use, background leakage, reported/unreported losses, bursts and overflows.
Cost assignment - methods to estimate the economic impact of apparent and real water losses.
Water loss management planning - general principles for preparing management plans, including district metered areas (DMA), active leakage control, pressure management, maintenance and rehabilitation planning.
Informative annexes - practical guidance on measurement methods, factors affecting leakage, Economic Leakage Level (ELL), leak detection technologies, night flow analysis, and uncertainty assessment.

Practical applications and users

Who uses ISO 24528:2021:

Drinking water utilities and operators
Asset and network managers responsible for non‑revenue water reduction
Consultants and engineers performing leakage assessments and DMA design
Regulators and policymakers developing performance targets and benchmarking
Industrial water managers adapting the methodology for non‑public systems

Practical uses:

Conducting systematic water loss investigations and producing defensible water balances
Prioritizing investments (leak detection, pressure control, meter replacement) based on cost impacts
Designing DMA programs and active leakage control strategies
Comparing performance using standardized indicators for reporting and benchmarking

ISO 24528:2021 PDF

Технические детали

Abstract

Overview

Key technical topics and requirements

Practical applications and users

Related standards

Похожие стандарты

Abstract

Overview

Key technical topics and requirements

Practical applications and users

Related standards

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