SIST EN ISO 4064-5:2017
(Main)Water meters for cold potable water and hot water - Part 5: Installation requirements (ISO 4064-5:2014)
Water meters for cold potable water and hot water - Part 5: Installation requirements (ISO 4064-5:2014)
This part of ISO 4064 applies to water meters used to meter the volume of cold potable water and hot
water flowing through a fully charged, closed conduit. These water meters incorporate devices which
indicate the integrated volume.
This part of ISO 4064 specifies criteria for the selection of single, combination and concentric water
meters, associated fittings, installation, special requirements for meters, and the first operation of new
or repaired meters to ensure accurate constant measurement and reliable reading of the meter.
In addition to meters based on mechanical principles, this part of ISO 4064 also applies to water
meters based on electrical or electronic principles, and to water meters based on mechanical principles
incorporating electronic devices, used to measure the volume of cold potable water and hot water. It also
applies to electronic ancillary devices. Ancillary devices are optional. However, national or international
regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.
The recommendations of this part of ISO 4064 apply to water meters, irrespective of technology, defined
as integrating measuring instruments continuously determining the volume of water flowing through
them.
NOTE Any national regulations apply in the country of use.
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 5: Einbaubedingungen (ISO 4064-5:2014)
Compteurs d'eau potable froide et d'eau chaude - Partie 5: Exigences d'installation (ISO 4064-5:2014)
L'ISO 4064-5:2013 s'applique aux compteurs d'eau utilisés pour mesurer le volume d'eau potable froide et d'eau chaude s'écoulant dans une conduite fermée et à pleine charge. Ces compteurs d'eau comportent des dispositifs indiquant le volume compté.
L'ISO 4064-5:2013 spécifie des critères pour le choix de compteurs d'eau individuels, combinés et concentriques, les accessoires associés, l'installation ainsi que des exigences spéciales pour la première mise en service de compteurs neufs ou réparés pour garantir un mesurage d'une exactitude constante et une lecture fiable du compteur.
En plus des compteurs dont le fonctionnement est basé sur des principes mécaniques, l'ISO 4064-5:2013 s'applique aussi aux compteurs d'eau dont le fonctionnement est basé sur un principe électrique ou électronique, ainsi qu'aux compteurs d'eau à fonctionnement mécanique incluant des dispositifs électroniques utilisés pour mesurer le volume débité d'eau chaude et d'eau potable froide. Elle s'applique également aux dispositifs électroniques auxiliaires. Les dispositifs auxiliaires sont facultatifs. Cependant, des réglementations nationales ou internationales peuvent rendre certains dispositifs auxiliaires obligatoires selon l'utilisation du compteur d'eau.
Les recommandations de l'ISO 4064-5:2013 s'appliquent aux compteurs d'eau, indépendamment de leur technologie, définis en tant qu'instruments de mesure totalisateurs de débit, déterminant de manière continue le volume de débit d'eau les traversant.
Vodomeri za merjenje hladne pitne vode in vroče vode - 5. del: Zahteve za vgradnjo (ISO 4064-5:2014)
Ta del standarda ISO 4064 se uporablja za vodomere za merjenje pretoka hladne pitne vode in vroče vode, ki teče skozi zaprto cev s polnim pretokom. Ti vodomeri imajo vgrajene naprave, ki prikazujejo vgrajen pretok.
Ta del standarda ISO 4064 določa merila za izbor enojnih, kombiniranih in koncentričnih
vodomerov, povezane fitinge, namestitev, posebne zahteve za vodomere in prvo delovanje novih ali popravljenih vodomerov, da se zagotovi točno stalno merjenje in zanesljivo odčitavanje vodomera.
Poleg mehansko delujočih vodomerov se ta del standarda ISO 4064 uporablja za električno ali elektronsko delujoče vodomere in vodomere, delujoče na podlagi mehanskih načel z vgrajenimi elektronskimi napravami, ki se uporabljajo za merjenje pretoka hladne pitne vode in vroče vode. Uporablja se tudi za elektronske pomožne naprave. Pomožne naprave so izbirne. Kljub temu lahko nacionalni ali mednarodni predpisi določajo obvezno uporabo nekaterih pomožnih naprav v povezavi z uporabo vodomerov.
Priporočila iz tega dela standarda ISO 4064 veljajo za vodomere, ki so opredeljeni kot integrirani merilni instrumenti za konstantno določanje pretoka vode, ki teče skoznje, ne glede na tehnologijo.
OPOMBA: Veljajo vsi nacionalni predpisi v državi uporabe.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 4064-5:2017
01-september-2017
1DGRPHãþD
SIST EN ISO 4064-5:2015
9RGRPHUL]DPHUMHQMHKODGQHSLWQHYRGHLQYURþHYRGHGHO =DKWHYH]D
YJUDGQMR ,62
Water meters for cold potable water and hot water - Part 5: Installation requirements
(ISO 4064-5:2014)
Wasserzähler zum Messen von kaltem Trinkwasser und heißem Wasser - Teil 5:
Einbaubedingungen (ISO 4064-5:2014)
Compteurs d'eau potable froide et d'eau chaude - Partie 5: Exigences d'installation (ISO
4064-5:2014)
Ta slovenski standard je istoveten z: EN ISO 4064-5:2017
ICS:
17.120.10 Pretok v zaprtih vodih Flow in closed conduits
91.140.60 Sistemi za oskrbo z vodo Water supply systems
SIST EN ISO 4064-5:2017 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 4064-5:2017
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SIST EN ISO 4064-5:2017
EN ISO 4064-5
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2017
EUROPÄISCHE NORM
ICS 91.140.60 Supersedes EN ISO 4064-5:2014
English Version
Water meters for cold potable water and hot water - Part
5: Installation requirements (ISO 4064-5:2014)
Compteurs d'eau potable froide et d'eau chaude - Wasserzähler zum Messen von kaltem Trinkwasser
Partie 5: Exigences d'installation (ISO 4064-5:2014) und heißem Wasser - Teil 5: Einbaubedingungen (ISO
4064-5:2014)
This European Standard was approved by CEN on 11 May 2017.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4064-5:2017 E
worldwide for CEN national Members.
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
Contents Page
European foreword . 3
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of Directive 2014/32/EU aimed to be covered . 4
2
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
European foreword
The text of ISO 4064-5:2014 has been prepared by Technical Committee ISO/TC 30 “Measurement of
fluid flow in closed conduits” of the International Organization for Standardization (ISO) and has been
taken over as EN ISO 4064-5:2017 by Technical Committee CEN/TC 92 “Water meters” the secretariat
of which is held by SNV.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by November 2017, and conflicting national standards
shall be withdrawn at the latest by November 2017.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
This document supersedes EN ISO 4064-5:2014.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directives.
For relationship with EU Directives, see informative Annex ZA, which is an integral part of this
document.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 4064-5:2014 has been approved by CEN as EN ISO 4064-5:2017 without any
modification.
3
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
Annex ZA
(informative)
Relationship between this European Standard and the essential
requirements of Directive 2014/32/EU aimed to be covered
This European Standard has been prepared under a Commission’s standardization request Mandate to
CEN and CENELEC for standardisation in the field of measuring instruments “M/374 EN” to provide one
voluntary means of conforming to essential requirements of Directive 2014/32/EC EU of the European
Parliament and the Council of 26 February 2014 on measuring instruments (Text with EEA relevance).
Once this standard is cited in the Official Journal of the European Union under that Directive
2014/32/EU, compliance with the normative clauses of this standard given in Table ZA.1 confers,
within the limits of the scope of this standard, a presumption of conformity with the corresponding
essential requirements of that Directive 2014/32/EU, and associated EFTA regulations.
Introduction:
The column “Comment” the term "Addressed" indicates the compliance between EN ISO 4064-5:2014
and the relevant requirement in Directive 2014/32/EU. The term "Not (fully) addressed" indicates that
compliance may not (fully) be realised, whilst "Addressed" may also be qualified in other ways. In the
case the requirement is "Not fully addressed", a short statement may explain what is covered. The
indication “Not applicable” means that the requirement in Annex I of Directive 2014/32/EU is not
relevant for Water Meters
The original Directive 2004/22/EU had been amended by Directive 137/2009/EC. These have been
fully replaced by Directive 2014/32/EU. This latest directive has already been amended by Directive
2015/13/EU.
The numbering in the first column will reflects the structure of the new Directive 2014/32/EU.
For purpose of cross-reference the second column indicates the structure of the original Directive
2004/22/EU.
4
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
Table ZA.1 — Correspondence between this European Standard and Annex I of Directive
2014/32/EU.
Essential Requirements Essential Requirements (ERs) Clause(s)/subclause(s) of Qualifying
(ERs) of Directive of Directive 22/2004/EC this EN remarks/Notes
32/2014/EU Annex I Essential
Annex I Essential Requirements
Requirements
Note: Amended by Directive
Note: Amended by 2009/137
Directive 2015/13/EU
I.1.1 and 1.2 Allowable I.1.1 and 1.2 Allowable errors, 4.1 Criteria for the selection
errors, Rated operating Rated operating conditions
conditions
I.1.3.1 Climatic I.1.3.1 Climatic environments, 4.1 Criteria for the selection
environments, temperature temperature limits
limits
I.1.3.2 Mechanical I.1.3.2 Mechanical environments 4.1 Criteria for the selection
environments
I.1.3.3 Electromagnetic I.1.3.3 Electromagnetic 4.1 Criteria for the selection
environments environments
Not addressed in EN See I.1.3.4 in EN
I.1.3.4 Other influences I.1.3.4 Other influences
ISO 4064-5 ISO 4064-1 and 2
I.1.4.1 Basic rules for Not addressed in EN See I.1.4.1 in EN
I.1.4.1 Basic rules for testing
testing ISO 4064-5 ISO 4064-1 and 2
Not addressed in EN See I.1.4.2 in EN
I.1.4.2 Ambient humidity I.1.4.2 Ambient humidity
ISO 4064-5 ISO 4064-1 and 2
I.2 Reproducibility 6.2 Addressed
I.2 Reproducibility
7.2 Addressed via acceptance
criteria of tests
Covered in EN ISO 4064-2,
performance tests
I.3 Repeatability 6.2 Addressed
I.3 Repeatability
7.2 Addressed via acceptance
criteria of tests
Covered in EN ISO 4064-2,
performance tests
I.4 Discrimination and I.4 Discrimination and sensitivity 6.2 Addressed
sensitivity
6.5 Addressed via acceptance
criteria of tests
7
Covered in EN ISO 4064-2,
performance tests
I.5 Durability I.5 Durability Not addressed in EN Addressed via acceptance
ISO 4064-5 but covered in criteria of tests
EN ISO 4064-2,
performance tests
I.6 Reliability Not addressed in EN Addressed via acceptance
I.6 Reliability
ISO 4064-5 but covered in criteria of tests
EN ISO 4064-2,
performance tests
5
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
I.7 Suitability 4.1 Criteria for the selection
Covered in EN ISO 4064-2, Addressed via acceptance
I.7 Suitability
performance tests criteria of tests.
EN ISO 4064-1 chapters 4 Instrument requirements
to 6
I.7.1 Fraudulent use I.7.1 Fraudulent use 8.3.3 Addressed
I.7.2 Suitable for use I.7.2 Suitable for use see I.7 (Suitability) Addressed
I.7.3 Unduly biasing I.7.3 Unduly biasing Not addressed in EN Addressed in EN
ISO 4064-5 ISO 4064-2, 7.4.5 b)
I.7.4 Insensitivity to I.7.4 Insensitivity to measurand Not addressed in EN Addressed in EN
measurand fluctuations fluctuations ISO 4064-5 ISO 4064-2 performance
tests
I.7.5 Robustness and I.7.5 Robustness and suitability 4.1 Criteria for the selection
suitability of materials of materials
I.7.6 Allow for control after 8.3.4.2 Addressed
I.7.6 Allow for control after
placing on the market.
placing on the market
8.3.5.2
I.8.1 Not to be influenced in I.8.1 Not to be influenced in any 8.3.3 Addressed
any admissible way admissible way
I.8.2 Securing of hardware I.8.2 Securing of hardware 8.3.3 Addressed
components components
I.8.3 Securing and I.8.3 Securing and identification 8.3.3 Addressed
identification of software of software
I.8.4 Measurement data I.8.4 Measurement data 8.3.3 Addressed
adequately protected adequately protected against
against corruption corruption
I.8.5 Total quantity supplied I.8.5 Total quantity supplied not 8.3.3 Addressed
not to be reset to be reset
I.9.1 Inscriptions I.9.1 Inscriptions Not addressed in EN Addressed in EN
ISO 4064-5 ISO 4064-1, 6.6
I.9.2 Marking of packaging I.9.2 Marking of packaging and Not addressed in EN Addressed in EN
and documents documents ISO 4064-5 ISO 4064-1, 6.6
I.9.3 Information on I.9.3 Information on operation 4.2 Addressed
operation
I.9.4 Necessity of I.9.4 Necessity of instruction 4.2 Addressed
instruction manual manual
I.9.5 Scale interval for the I.9.5 Scale interval for the Not addressed in EN Addressed in EN
measurand measurand ISO 4064-5 ISO 4064-1, 6.7.3.2.1
I.9.6 Material measure I.9.6 Unit of measurement Not addressed in EN Addressed in EN
ISO 4064-5 ISO 4064-1, 6.7.1.2.1
I.9.7 Unit of measurement
I.9.7 Unit of measurement
I.9.8 Marking properties I.9.8 Marking properties Not addressed in EN Addressed in EN
ISO 4064-5 ISO 4064-1, 6.6 and 6.7
I.10.1 Display or hard copy Not addressed in EN Addressed in EN
I.10.1 Display or hard copy
ISO 4064-5 ISO 4064-1, 3.1.8 d)
6
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
I.10.2 Reading properties Not addressed in EN Addressed in EN
I.10.2 Reading properties
ISO 4064-5 ISO 4064-1, 6.7
I.10.3 Hard-copy or print I.10.3 Hard-copy or print - Not applicable
properties properties
I.10.4 Direct sales trading I.10.4 Direct sales trading - Not applicable
transactions transactions
I.10.5 Properties of display for Not addressed in EN Addressed in EN
I.10.5 Properties of display
remote reading ISO 4064-5 ISO 4064-1, 6.1.8 and EN
for remote reading
ISO 4064-2, 6.4.3
I.11.1 Recording properties I.11.1 Recording properties of - Not applicable
of non-utility measuring non-utility measuring
instrument instrument
I.11.2 Availability of I.11.2 Availability of durable - Not applicable
durable proof of proof of measurement result
measurement result
I.12 Conformity evaluation Not addressed in EN Addressed in EN
I.12 Conformity evaluation
ISO 4064-5 ISO 4064-1, 3.6 and 7.3
Specific Requirements of Specific Requirements of Clause(s)/subclause(s) of Qualifying
Annex III for WATER Annex MI-001 for WATER this European Standard remarks/Notes
METERS (MI-001) METERS
Rated Operating Conditions Rated Operating Conditions 4.1 Criteria for the selection
MI.1 Values of flow rate MI.1 Values of flow rate range 4.1 Criteria for the selection
range
Note: addresses amendment of
Note: addresses Directive 2015/13/EU
amendment of Directive
2015/13/EU
MI.2 Temperature range of MI.2 Temperature range of the 4.1 Criteria for the selection
the water water
MI.3 Relative pressure of MI.3 Relative pressure of the 4.1 Criteria for the selection
the water water
MI.4 Nominal value of AC MI.4 Nominal value of AC voltage 4.1 Criteria for the selection
voltage supply and limits of supply and limits of DC supply
DC supply
MI.5 MPE ± 2 % for water MI.5 MPE ± 2 % for water 4.1 Criteria for the selection
temperature ≤ 30 °C for temperature ≤ 30 °C for flow rate
flow rate between Q2 between Q2 (included) and Q4
(included) and Q4
MI.5 MPE ±3% for water MI.5 MPE ±3% for water 4.1 Criteria for the selection
temperature > 30 °C for temperature > 30 °C for flow rate
flow rate between Q2 between Q2 (included) and Q4
(included) and Q4
MI.6 MPE ± 5 % for any MI.6 MPE ± 5 % for any water 4.1 Not addressed
water temperature for flow temperature for flow rate
rate between Q1 and Q2 between Q1 and Q2 (excluded)
(excluded)
MI.6 Non exploitation of (see: Directive 137/2009/EC
MPE Requirements below)
MI.7.1.1 Electromagnetic 4.1 Criteria for the selection
MI.7.1.1 Electromagnetic
7
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SIST EN ISO 4064-5:2017
EN ISO 4064-5:2017 (E)
immunity immunity
MI.7.1.2 Condition after MI.7.1.2 Condition after 4.1 Criteria for the selection
electromagnetic electromagnetic disturbance
disturbance
MI 7.1.3 Critical change MI 7.1.3 Critical change value 4.1 Criteria for the selection
value
MI 7.2.1 Variation of MI 7.2.1 Variation of 4.1 Criteria for the selection
measurement after measurement after durability
durability
MI 7.2.2 Error of indication MI 7.2.2 Error of indication after 4.1 Criteria for the selection
after durability durability
MI.8.1 Meter able to be MI.8.1 Meter able to be installed 6.2.6 Addressed
installed in defined position in defined position
MI.8.2 Meter is not MI.8.2 Meter is not designed to 8.3.2 Addressed
designed to measure measure reverse flow
reverse flow
MI.9 Cubic metre MI.9 Cubic metre 4.1 Criteria for the selection
MI 10 Putting into use MI 10 Putting into use 6.2.6 and 8.3.2 and I.7 Addressed
Directive 137/2009/EC Clause(s)/subclause(s) of Qualifying remarks/Notes
Requirements this European Standard
MI 001 6a Exploitation of MPE Not addressed in part 5 Not addressed
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
Standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
8
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SIST EN ISO 4064-5:2017
INTERNATIONAL ISO
STANDARD 4064-5
First edition
2014-06-01
Water meters for cold potable water
and hot water —
Part 5:
Installation requirements
Compteurs d’eau potable froide et d’eau chaude —
Partie 5: Exigences d’installation
Reference number
ISO 4064-5:2014(E)
©
ISO 2014
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SIST EN ISO 4064-5:2017
ISO 4064-5:2014(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved
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SIST EN ISO 4064-5:2017
ISO 4064-5:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Criteria for the selection of water meters . 2
4.1 General considerations . 2
4.2 Information to be provided by the manufacturer . 2
4.3 Meters operating in parallel or in a group . 2
5 Associated fittings . 3
5.1 General . 3
5.2 Upstream of the meter . 3
5.3 Downstream of the meter . 3
6 Installation . 4
6.1 General requirements . 4
6.2 Installation requirements . 4
6.3 Water quality (suspended particles) . 5
6.4 Electromagnetic meters . 5
6.5 Meters operating in parallel or in a group . 5
6.6 Security of operation . 5
7 Hydraulic disturbances . 5
7.1 General considerations . 5
7.2 Methods to eliminate disturbances . 6
8 First operation of new or repaired water meters . 7
8.1 General considerations . 7
8.2 Meters operating in parallel or in a group . 7
8.3 Protection of the meter . 7
8.4 Safety of personnel and users . 9
8.5 Comfort of personnel — Access to the water meter and fittings .10
Bibliography .12
© ISO 2014 – All rights reserved iii
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SIST EN ISO 4064-5:2017
ISO 4064-5:2014(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2, www.iso.org/directives.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received, www.iso.org/patents.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is ISO/TC 30, Measurement of fluid flow in closed conduits,
Subcommittee SC 7, Volume methods including water meters. It supersedes ISO 4064-2:2005, which has
been technically revised.
ISO 4064 consists of the following parts, under the general title Water meters for cold potable water and
hot water:
— Part 1: Metrological and technical requirements
— Part 2: Test methods
— Part 3: Test report format
— Part 4: Non-metrological requirements not covered in ISO 4064-1
— Part 5: Installation requirements
iv © ISO 2014 – All rights reserved
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SIST EN ISO 4064-5:2017
INTERNATIONAL STANDARD ISO 4064-5:2014(E)
Water meters for cold potable water and hot water —
Part 5:
Installation requirements
1 Scope
This part of ISO 4064 applies to water meters used to meter the volume of cold potable water and hot
water flowing through a fully charged, closed conduit. These water meters incorporate devices which
indicate the integrated volume.
This part of ISO 4064 specifies criteria for the selection of single, combination and concentric water
meters, associated fittings, installation, special requirements for meters, and the first operation of new
or repaired meters to ensure accurate constant measurement and reliable reading of the meter.
In addition to meters based on mechanical principles, this part of ISO 4064 also applies to water
meters based on electrical or electronic principles, and to water meters based on mechanical principles
incorporating electronic devices, used to measure the volume of cold potable water and hot water. It also
applies to electronic ancillary devices. Ancillary devices are optional. However, national or international
regulations may make some ancillary devices mandatory in relation to the utilization of the water meter.
The recommendations of this part of ISO 4064 apply to water meters, irrespective of technology, defined
as integrating measuring instruments continuously determining the volume of water flowing through
them.
NOTE Any national regulations apply in the country of use.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 4064-1:2014|OIML R 49-1:2013, Water meters for cold potable water and hot water — Part 1:
Metrological and technical requirements
ISO 6817, Measurement of conductive liquid flow in closed conduits — Method using electromagnetic
flowmeters
3 Terms and definitions
For the purposes of this part of ISO 4064, the definitions given in ISO 4064-1|OIML R 49-1 and the
following apply.
3.1
parallel operation
operation of two or more meters grouped together and connected to a common source
and a common delivery
3.2
multiple meter operation
operation of several meters grouped together where their inlets are connected to a common source, or
their outlets to a common delivery, but not both at the same time
© ISO 2014 – All rights reserved 1
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SIST EN ISO 4064-5:2017
ISO 4064-5:2014(E)
3.3
adaptor
additional mechanical device fitted into a connection interface on location in order
to combine an unmodified cartridge meter of one geometry with a connection interface of another
geometry
3.4
converter
connection interface consisting of several parts produced as a complete unit prior to
installation into the supply system
Note 1 to entry: No assembly work is to be done on location other than the installation of the complete interface.
Conversion is related to either change of flow pattern, change of flow direction or extension of seat depth.
4 Criteria for the selection of water meters
4.1 General considerations
The type, metrological characteristics, and sizes of water meters should be determined according to the
operating conditions of the installation and the environmental class(es) demanded, taking into account,
particularly, the following:
— the available supply pressure;
— the physical and chemical characteristics of the water, including water temperature and water
quality (suspended particles);
— the acceptable pressure loss across the meter;
— the expected flow rates: the flow rates Q and Q of the meter (as defined in ISO 4064-1:2014|OIML R 49-
1 3
1:2013, Clause 3) shall be compatible with the expected flow rate conditions of the installations,
including the water flow direction(s);
— the suitability of the meter type for the intended mechanical, climatic, electrical, and hydraulic
conditions, including ambient relative humidity, vibrations, electrostatic discharges, continuous
magnetic field, and electromagnetic disturbances;
— the available space and pipe work to install the meter and fittings;
— the possibility of d
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