EN 60734:2012

SLOVENSKI STANDARD
01-januar-2013
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Household electrical appliances - Performance - Hard water for testing
Elektrische Geräte für den Hausgebrauch - Gebrauchseigenschaften - Hartes Wasser für
Prüfungen
Appareils électrodomestiques - Aptitude à la fonction - Eau dure pour les essais
Ta slovenski standard je istoveten z: EN 60734:2012
ICS:
97.060 Aparati za nego perila Laundry appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60734
NORME EUROPÉENNE
September 2012
EUROPÄISCHE NORM
ICS 97.060 Supersedes EN 60734:2003

English version
Household electrical appliances -
Performance -
Water for testing
(IEC 60734:2012)
Appareils électrodomestiques -  Elektrische Geräte
Aptitude à la fonction - für den Hausgebrauch -
Eau pour les essais Gebrauchseigenschaften -
(CEI 60734:2012) Wasser für Prüfungen
(IEC 60734:2012)
This European Standard was approved by CENELEC on 2012-08-01. CENELEC 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 CENELEC 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 CENELEC member into its own language and notified
to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60734:2012 E
Foreword
The text of document 59D/398/FDIS, future edition 4 of IEC 60734, prepared by SC 59D, Home laundry
appliances, of IEC TC 59, Performance of household and similar electrical appliances was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN 60734:2012.

The following dates are fixed:
(dop) 2013-05-01
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2015-08-01

standards conflicting with the
document have to be withdrawn
This document supersedes EN 60734:2003.
a) four types of standard water, from soft to very hard, are defined with specification for hardness,
alkalinity and conductivity;
b) preparation method A is no longer maintained; and
c) method C3 is added to prepare water of specified hardness, conductivity and alkalinity starting with
natural water while the natural water based methods C1 and C2 focus on water hardness only, without
allowing control or setting of alkalinity and conductivity.
Words in bold in the text are defined in Clause 3.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 60734:2012 was approved by CENELEC as a European
Standard without any modification.

- 3 - EN 60734:2012
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

ISO 6059 - Water quality - Determination of the sum of - -
calcium and magnesium - EDTA titrimetric
method
ISO 7888 - Water quality - Determination of electrical EN 27888 -
conductivity
ISO 9963-1 - Water quality - Determination of alkalinity - EN ISO 9963-1 -
Part 1: Determination of total and composite
alkalinity
ISO 10523 - Water quality - Determination of pH EN ISO 10523 -

IEC 60734 ®
Edition 4.0 2012-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household electrical appliances – Performance – Water for testing

Appareils électrodomestiques – Aptitude à la fonction – Eau pour les essais

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX N
ICS 97.060 ISBN 978-2-83220-139-8

– 2 – 60734 © IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and symbols . 6
3.1 Terms and definitions . 6
3.2 Symbols . 7
4 Measurements and accuracy . 8
5 Standard water . 8
5.1 Water types . 8
5.2 Additional requirements . 9
6 Preparation of standard water. 9
6.1 Demineralisation of natural water . 9
6.2 Preparation of standard water method B . 9
6.2.1 Principle . 9
6.2.2 Procedure . 9
6.2.3 Composition of standard water prepared by method B . 10
6.3 Preparation of water methods C1 and C2 . 10
6.3.1 Principle . 10
6.3.2 Composition of standard water prepared by methods C1 and C2 . 10
6.3.3 Hardness adjustment method C1 . 11
6.3.4 Hardness adjustment method C2 . 11
6.4 Preparation of water method C3 . 11
6.4.1 Principle . 11
6.4.2 Determination of initial water properties . 11
6.4.3 Dilution with demineralised water . 11
6.4.4 Determination of the required salt additions . 12
6.4.5 Adjusting PH . 13
7 Storage of standard water . 13
7.1 General . 13
7.2 Effects of heat on standard water . 13
8 Checking . 13
Annex A (informative) Water hardness – Conversion table . 14

Table 1 – Measurement specifications . 8
Table 2 – Composition of soft, medium hard, hard and very hard water . 8
Table 3 – Maximum content of heavy metal ions and chloride . 9
Table 4 – Amounts of salt solutions to be added to 1 l of demineralised water . 10
Table 5 – Expected composition of standard water achieved by method B . 10
Table A.1 – Conversion in French, English, German degrees and grains per gallon
(US) for the values of specified total hardness . 14

60734 © IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD ELECTRICAL APPLIANCES –
PERFORMANCE – WATER FOR TESTING

FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International standard IEC 60734 has been prepared by subcommittee 59D: Home laundry
appliances, of IEC Technical Committee
...