EN ISO 4064-2:2025
(Main)Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-2:2024)
Water meters for cold potable water and hot water - Part 2: Test methods (ISO 4064-2:2024)
This document is applicable to the type evaluation and initial verification testing of water meters for cold potable water and hot water as defined in ISO 4064-1:2024|OIML R 49‑1:2024. OIML Certificates of conformity can be issued for water meters under the scope of the OIML Certificate System, provided that this document, ISO 4064-1:2024|OIML R 49‑1:2024 and ISO 4064-3:2024|OIML R 49‑3:2024 are used in accordance with the rules of the system.
This document sets out details of the test programme, principles, equipment and procedures to be used for the type evaluation, and initial verification of a meter type.
The provisions of this document also apply to ancillary devices, if required by national regulations.
The provisions include requirements for testing the complete water meter and for testing the measurement transducer (including the flow or volume sensor) and the calculator (including the indicating device) of a water meter as separate units.
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 2: Prüfverfahren (ISO 4064-2:2024)
Dieses Dokument gilt für die Baumusterprüfung und die Ersteichung von Wasserzählern für kaltes Trinkwasser und heißes Wasser, die in ISO4064-1:||OIMLR49-1:- definiert sind. Die OIML-Kon formitätszertifikate können für Wasserzähler ausgestellt werden, die in den Anwendungsbereich des OIML-Zertifizierungssystems fallen, vorausgesetzt, dass dieses Dokument, ISO4064-1:||OIMLR49-1:2024 und ISO4064-3:||OIMLR49-3:- in Übereinstimmung mit den Regeln des Systems angewendet werden.
Dieses Dokument legt die Einzelheiten des Prüfprogramms, Grundsätze, Ausrüstung und Verfahren fest, die für die Baumusterprüfung und die Ersteichung einer Zählerart zum Einsatz kommen.
Die Bestimmungen dieses Dokuments gelten ebenfalls für Zusatzeinrichtungen, sofern diese aufgrund natio naler Regelungen erforderlich sind.
Die Bestimmungen enthalten Anforderungen an die Prüfung des vollständigen Wasserzählers sowie an die Prü fung des Messwertgebers (einschließlich Durchfluss- und Volumensensor) und des Rechners (einschließlich Anzeigeeinrichtung) von Wasserzählern als eigenständige Einheiten.
Compteurs d'eau potable froide et d'eau chaude - Partie 2: Méthodes d'essai (ISO 4064-2:2024)
Le présent document est applicable aux essais d’évaluation de type et de vérification primitive des compteurs d’eau potable froide et d’eau chaude tels que définis dans l’ISO 4064-1:2024|OIML R 49-1:2024. Des certificats de conformité OIML peuvent être délivrés pour les compteurs d’eau couverts par le domaine d’application du système de certificats OIML, à condition que le présent document, l’ISO 4064-1:2024|OIML R 49-1:2024 et l’ISO 4064-3:2024|OIML R 49-3:2024 soient utilisées conformément aux règles du système.
Le présent document donne des détails sur le programme d’essai, les principes, l’équipement et les modes opératoires à utiliser pour les essais d’évaluation de type et de vérification primitive d’un type de compteur.
Les dispositions du présent document s’appliquent également aux dispositifs complémentaires, si les réglementations nationales l’exigent.
Les dispositions incluent les exigences d’essai du compteur d’eau complet et des exigences d’essai du transducteur de mesure (incluant le capteur de débit ou de volume) et du calculateur (incluant le dispositif indicateur) d’un compteur d’eau en tant qu’unités séparées.
Vodomeri za merjenje hladne pitne vode in vroče vode - 2. del: Preskusne metode (ISO/FDIS 4064-2:2024)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 4064-2:2023
01-december-2023
Vodomeri za merjenje hladne pitne vode in vroče vode - 2. del: Preskusne metode
(ISO/DIS 4064-2:2023)
Water meters for cold potable water and hot water - Part 2: Test methods (ISO/DIS 4064
-2:2023)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 2:
Prüfverfahren (ISO/DIS 4064-2:2023)
Compteurs d'eau potable froide et d'eau chaude - Partie 2: Méthodes d'essai (ISO/DIS
4064-2:2023)
Ta slovenski standard je istoveten z: prEN ISO 4064-2
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 4064-2:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN ISO 4064-2:2023
oSIST prEN ISO 4064-2:2023
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4064-2
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 2:
Test methods
Compteurs d'eau potable froide et d'eau chaude —
Partie 2: Méthodes d'essai
ICS: 91.140.60
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
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NATIONAL REGULATIONS.
ISO/DIS 4064-2:2023(E)
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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 4064-2:2023
ISO/DIS 4064-2:2023(E)
DRAFT INTERNATIONAL STANDARD
ISO/DIS 4064-2
ISO/TC 30/SC 7 Secretariat: BSI
Voting begins on: Voting terminates on:
Water meters for cold potable water and hot water —
Part 2:
Test methods
Compteurs d'eau potable froide et d'eau chaude —
Partie 2: Méthodes d'essai
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.
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TECHNOLOGICAL, COMMERCIAL AND
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Reference number
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NATIONAL REGULATIONS.
Website: www.iso.org ISO/DIS 4064-2:2023(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 4064-2:2023
ISO/DIS 4064-2:2023(E)
Contents Page
Foreword .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 3
4 Reference conditions .3
5 Symbols, units and equations . 3
6 External examination . 3
6.1 General . 3
6.2 Object of the examination . 4
6.3 Preparation . 4
6.4 Examination procedures . 4
6.4.1 General . 4
6.4.2 Marks and inscriptions ( ISO 4064-1:xxx|OIML R 49-1:xxx, 6.6) . 4
6.4.3 Indicating device ( ISO 4064-1:xxx|OIML R 49-1:xxx, 6.7) . 4
6.4.4 Protection devices ( ISO 4064-1:xxx|OIML R 49-1:xxx, 6.8) . 8
7 Performance tests for all water meters . 8
7.1 General . 8
7.2 Required conditions for all tests . 8
7.2.1 Water quality . 8
7.2.2 General rules concerning test installation and location . 9
7.3 Static pressure test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 4.2.10). 9
7.3.1 Object of the test . 9
7.3.2 Preparation . 9
7.3.3 Test procedure. 9
7.3.4 Acceptance criteria . 10
7.4 Determination of intrinsic errors (of indication) ( ISO 4064-1:xxx|OIML R 49-1:xxx,
7.2.3) . 10
7.4.1 Object of the test . 10
7.4.2 Preparation . 10
7.4.3 Combination meters . 16
7.4.4 Test procedure. 16
7.4.5 Acceptance criteria . 17
7.4.6 Interchange test on all types of cartridge meters and meters with
exchangeable metrological modules ( ISO 4064-1:xxx|OIML R 49-1:xxx,
7.2.7) . 17
7.5 Water temperature test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 4.2.8) . 18
7.5.1 Object of the test . 18
7.5.2 Preparation . 18
7.5.3 Test procedure. 18
7.5.4 Acceptance criteria . 19
7.6 Overload water temperature test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 7.2.5) . 19
7.6.1 Object of the test . 19
7.6.2 Preparation . 19
7.6.3 Test procedure. 19
7.6.4 Acceptance criteria . 19
7.7 Water pressure test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 4.2.8) . 19
7.7.1 Object of the test . 19
7.7.2 Preparation . 19
7.7.3 Test procedure. 19
7.7.4 Acceptance criteria . 20
7.8 Reverse flow test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 4.2.7) . 20
7.8.1 Object of the test . 20
iii
oSIST prEN ISO 4064-2:2023
ISO/DIS 4064-2:2023(E)
7.8.2 Preparation . 20
7.8.3 Test procedure.20
7.8.4 Acceptance criteria . 21
7.9 Pressure loss test ( ISO 4064-1:xxx|OIML R 49-1:xxx, 6.5) . 21
7.9.1 Object of the test . 21
7.9.2 Equipment for pressure loss test . 21
7.9.3 Test procedure.23
7.9.4 Calculation of the actual Δp of a water meter. 25
7.9.5 Acceptability criteria .25
7.10 Flow disturbance tests ( ISO 4064-1
...
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