EN ISO 4064-1:2025

Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2024)

This document specifies the metrological and technical requirements for water meters for cold potable water and hot water flowing through a fully charged, closed conduit. These water meters incorporate devices which indicate the accumulated volume.
In addition to water meters based on mechanical principles, this document applies to devices based on electrical or electronic principles, and mechanical principles incorporating electronic devices, used to measure the volume of cold potable water and hot water.
This document also applies to electronic ancillary devices. Ancillary devices are optional. However, it is possible for national or regional regulations to render some ancillary devices mandatory in relation to the utilization of water meters.
NOTE            Any national regulations apply in the country of use.

Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 1: Metrologische und technische Anforderungen (ISO 4064-1:2024)

Dieses Dokument legt die metrologischen und technischen Anforderungen für Wasserzähler für kaltes Trinkwasser und heißes Wasser fest, das durch eine vollkommen gefüllte, geschlossene Leitung fließt. Diese Wasserzähler sind mit Einrichtungen versehen, die das kumulierte Volumen anzeigen.
Zusätzlich zu den auf mechanischen Funktionsprinzipien beruhenden Wasserzählern gilt das vorliegende Dokument außerdem für Einrichtungen nach elektrischem oder elektronischem Funktionsprinzip und nach mechanischem Funktionsprinzip mit elektronischen Einrichtungen, die zur Messung des Volumens von kaltem Trinkwasser und heißem Wasser dienen.
Dieses Dokument gilt außerdem für elektronische Zusatzeinrichtungen. Zusatzeinrichtungen sind optional. Jedoch können in nationalen oder internationalen Regelungen einige Zusatzeinrichtungen hinsichtlich der Verwendung von Wasserzählern verbindlich vorgeschrieben sein.
ANMERKUNG   In den Anwendungsländern gelten nationale Vorschriften.

Compteurs d'eau potable froide et d'eau chaude - Partie 1: Exigences métrologiques et techniques (ISO 4064-1:2024)

Le présent document spécifie les exigences métrologiques et techniques applicables aux compteurs d’eau potable froide et d’eau chaude circulant dans une conduite fermée entièrement chargée. Ces compteurs d’eau comportent des dispositifs indiquant le volume cumulé.
En plus des compteurs d’eau dont le fonctionnement est basé sur des principes mécaniques, le présent document s’applique aux dispositifs dont le fonctionnement est basé sur un principe électrique ou électronique, ainsi qu’à un fonctionnement mécanique incluant des dispositifs électroniques utilisés pour mesurer le volume débité d’eau potable froide et d’eau chaude.
Le présent document s’applique également aux dispositifs électroniques complémentaires. Les dispositifs complémentaires sont facultatifs. Il est cependant possible que des réglementations nationales ou régionales rendent certains dispositifs complémentaires obligatoires selon l’utilisation des compteurs d’eau.
NOTE            Toute réglementation nationale est applicable dans le pays d’utilisation.

Vodomeri za merjenje hladne pitne vode in vroče vode - 1. del: Metrološke in tehnične zahteve (ISO/FDIS 4064-1:2024)

General Information

• Status: Not Published
• Publication Date: 25-Feb-2025
• ICS: 91.140.60 - Water supply systems
• Technical Committee: CEN/TC 92 - Test methods and equipment for cold water meters
• Drafting Committee: CEN/TC 92 - Test methods and equipment for cold water meters
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Start Date: 23-Sep-2024
• Due Date: 23-Sep-2024
• Completion Date: 23-Sep-2024
• Directive: 2014/32/EU - Directive 2014/32/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of measuring instruments
• Mandate: M/541 - [C(2015)8558] Standardization request in support of the implementation of Directive 2014/32/EU on measuring instruments
• Ref Project: kSIST FprEN ISO 4064-1:2024 - Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO/FDIS 4064-1:2024)

Relations

• Revises: EN ISO 4064-1:2017 - Water meters for cold potable water and hot water - Part 1: Metrological and technical requirements (ISO 4064-1:2014)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 4064-1:2023
01-december-2023
Vodomeri za merjenje hladne pitne vode in vroče vode - 1. del: Metrološke in
tehnične zahteve (ISO/DIS 4064-1:2023)
Water meters for cold potable water and hot water - Part 1: Metrological and technical
requirements (ISO/DIS 4064-1:2023)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 1:
Metrologische und technische Anforderungen (ISO/DIS 4064-1:2023)
Compteurs d'eau potable froide et d'eau chaude - Partie 1: Exigences métrologiques et
techniques (ISO/DIS 4064-1:2023)
Ta slovenski standard je istoveten z: prEN ISO 4064-1
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
oSIST prEN ISO 4064-1:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 4064-1:2023
oSIST prEN ISO 4064-1:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4064-1
ISO/TC 30/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:
2023-10-09 2024-01-01
Water meters for cold potable water and hot water —
Part 1:
Metrological and technical requirements
Compteurs d'eau potable froide et d'eau chaude —
Partie 1: Exigences métrologiques et techniques
ICS: 91.140.60
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 4064-1:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 4064-1:2023
ISO/DIS 4064-1:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4064-1
ISO/TC 30/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:

Water meters for cold potable water and hot water —
Part 1:
Metrological and technical requirements
Compteurs d'eau potable froide et d'eau chaude —
Partie 1: Exigences métrologiques et techniques
ICS: 91.140.60
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
© ISO 2023
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
NOT BE REFERRED TO AS AN INTERNATIONAL
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on STANDARD UNTIL PUBLISHED AS SUCH.
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
IN ADDITION TO THEIR EVALUATION AS
or ISO’s member body in the country of the requester. BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
ISO copyright office
USER PURPOSES, DRAFT INTERNATIONAL
CP 401 • Ch. de Blandonnet 8
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
CH-1214 Vernier, Geneva
POTENTIAL TO BECOME STANDARDS TO
Phone: [phone]
WHICH REFERENCE MAY BE MADE IN
Reference number
Email: [e-mail]
NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 4064-1:2023(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
Published in Switzerland
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
ii
PROVIDE SUPPORTING DOCUMENTATION. © ISO 2023

oSIST prEN ISO 4064-1:2023
ISO/DIS 4064-1:2023(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Water meter and its constituents . 1
3.2 Metrological characteristics . 5
3.3 Operating conditions . 6
3.4 Test conditions . 8
3.5 Electronic and electrical equipment . 10
3.6 Use of certain terms within the European Economic Area. 11
4 Metrological requirements . .11
4.1 Values of Q , Q , Q , and Q . 11
1 2 3 4
4.2 Accuracy class and maximum permissible error .12
4.2.1 General .12
4.2.2 Accuracy class 1 water meters .12
4.2.3 Accuracy class 2 water meters .12
4.2.4 Meter temperature classes .12
4.2.5 Water meters with separable calculator and measurement transducer .13
4.2.6 Relative error of indication . 13
4.2.7 Reverse flow . 13
4.2.8 Water temperature and water pressure . 13
4.2.9 Absence of flow or of water . 13
4.2.10 Static pressure . 14
4.3 Requirements for meters and ancillary devices . 14
4.3.1 Connections between electronic parts . 14
4.3.2 Adjustment device . 14
4.3.3 Correction device . 14
4.3.4 Calculator . 14
4.3.5 Indicating device .15
4.3.6 Ancillary devices . 15
5 Water meters equipped with electronic devices .15
5.1 General requirements . 15
5.2 Power supply . 16
5.2.1 General . 16
5.2.2 External power supply . 16
5.2.3 Non-replaceable battery . 17
5.2.4 Replaceable battery . 17
6 Technical requirements .18
6.1 Materials and construction of water meters . 18
6.2 Adjustment and correction . . 18
6.3 Installation conditions . 18
6.4 Rated operating conditions . 20
6.5 Pressure loss . 20
6.6 Marks and inscriptions . 21
6.7 Indicating device . .22
6.7.1 General requirements .22
6.7.2 Types of indicating device . 23
6.7.3 Verification devices — First element of an indicating device — Verification
scale interval . 24
6.8 Protection devices . 25
6.8.1 General . 25
6.8.2 Electronic sealing devices . 25
iii
oSIST prEN ISO 4064-1:2023
ISO/DIS 4064-1:2023(E)
7 Metrological controls .26
7.1 Reference conditions .26
7.2 Type evaluation and approval . 26
7.2.1 External examination . 26
7.2.2 Number of samples .26
7.2.3 Errors (of indication) . 26
7.2.4 Repeatability .
...