EN 60704-2-4:2001

SLOVENSKI SIST EN 60704-2-4:2002
izdaja
STANDARD
september 2002
Household and similar electrical appliances - Test code for the determination of
airborne acoustical noise - Part 2-4: Particular requirements for washing machines
and spin extractors
ICS 17.140.20; 97.060 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 60704-2-4
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2001
ICS 17.140.20;97.060 Supersedes EN 60704-2-4:1994
English version
Household and similar electrical appliances -
Test code for the determination of airborne acoustical noise
Part 2-4: Particular requirements for washing machines
and spin extractors
(IEC 60704-2-4:2001)
Appareils électrodomestiques et Elektrische Geräte für den Hausgebrauch
analogues - und ähnliche Zwecke -
Code d'essai pour la détermination du Prüfvorschrift für die Bestimmung
bruit aérien der Luftschallemission
Partie 2-4: Règles particulières Teil 2-4: Besondere Anforderungen an
pour les machines à laver et Waschmaschinen und Wäscheschleudern
pour les essoreuses centrifuges (IEC 60704-2-4:2001)
(CEI 60704-2-4:2001)
This European Standard was approved by CENELEC on 2001-07-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, Spain, Sweden, Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60704-2-4:2001 E
Foreword
The text of document 59D/185/FDIS, future edition 2 of IEC 60704-2-4, prepared by SC 59D, Home
laundry appliances, of IEC TC 59, Performance of household electrical appliances, was submitted to
the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60704-2-4 on 2001-07-01.
This European Standard supersedes EN 60704-2-4:1994.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2002-04-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2004-07-01
This part 2-4 is to be used in conjunction with EN 60704-1:1997.
This part 2-4 supplements or modifies the corresponding clauses of EN 60704-1. When a particular
subclause of part 1 is not mentioned in this part 2-4, that subclause applies as far as is reasonable.
Where this part 2-4 states "addition", "modification" or "replacement", the relevant text of part 1 is to be
adapted accordingly.
Subclauses or figures which are additional to those in part 1 are numbered starting from 101.
Annexes designated "normative" are part of the body of the standard.
In this standard, annexes A and ZA are normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60704-2-4:2001 was approved by CENELEC as a
European Standard without any modification.
__________
- 3 - EN 60704-2-4:2001
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
Addition to annex ZA of EN 60704-1:
Publication Year Title EN/HD Year
IEC 60456 (mod) 1998 Clothes washing machines for EN 60456 1999
household use - Methods for measuring +A11 2001
the performance +A12 2001
NORME CEI
INTERNATIONALE IEC
60704-2-4
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2001-07
Appareils électrodomestiques et analogues –
Code d'essai pour la détermination
du bruit aérien –
Partie 2-4:
Règles particulières pour les machines à laver
le linge et les essoreuses centrifuges
Household and similar electrical appliances –
Test code for the determination of airborne
acoustical noise –
Part 2-4:
Particular requirements for washing machines
and spin extractors
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utilisée sous quelque forme que ce soit et par aucun procédé, any form or by any means, electronic or mechanical,
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microfilms, sans l'accord écrit de l'éditeur. writing from the publisher.
International Electrotechnical Commission 3, rue de Varembé Geneva, Switzerland
Telefax: +41 22 919 0300 e-mail: inmail@iec.ch IEC web site http://www.iec.ch
CODE PRIX
Commission Electrotechnique Internationale
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PRICE CODE
International Electrotechnical Commission
Pour prix, voir catalogue en vigueur
For price, see current catalogue

60704-2-4  IEC:2001 – 3 –
CONTENTS
FOREWORD . 5
INTRODUCTION .9
1 Scope and object . 11
2 Normative references . 13
3 Terms and definitions. 13
4 Measurement methods and acoustical environments . 15
5 Instrumentation . 15
6 Operation and location of appliances under test. 17
7 Measurement of sound pressure levels. 21
8 Calculation of sound pressure and sound power levels . 23
9 Information to be recorded . 23
10 Information to be reported . 23
Annexes . 27

60704-2-4  IEC:2001 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –
Part 2-4: Particular requirements for washing machines
and spin extractors
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International Organization
for Standardization (ISO) in accordance with conditions determined by agreement between the two
organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60704-2-4 has been prepared by subcommittee 59D: Home laundry
appliances, of IEC technical committee 59: Performance of household electrical appliances.
This second edition cancels and replaces the first edition published in 1989 and constitutes a
technical revision.
The text of this standard is based on the following documents:
FDIS Report on voting
59D/185/FDIS 59D/191/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 3.
This Part 2-4 is intended to be used in conjunction with IEC 60704-1, 2nd edition 1997:
Household and similar electrical appliances – Test code for the determination of airborne
acoustical noise – Part 1: General requirements.

60704-2-4  IEC:2001 – 7 –
The relevant text of Part 1 as amended by this publication, establishes the test code for
washing machines and spin extractors.
This Part 2-4 supplements or modifies the corresponding clauses in IEC 60704-1. When a
particular subclause of Part 1 is not mentioned in this Part 2-4, that subclause is applicable as
far as reasonable. Where this standard states "addition", "modification" or "replacement", the
relevant requirements, test specifications or explanatory matter in Part 1 should be adapted
accordingly.
Subclauses or figures which are additional to those in Part 1 are numbered starting from 101.
Additional annexes are lettered AA, BB, etc.
Annex A forms an integral part of this standard.
The committee has decided that this publication remains valid until 2004. At this date, in
accordance with the committee’s decision, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
60704-2-4  IEC:2001 – 9 –
INTRODUCTION
The measuring conditions specified in this part of IEC 60704 provide for sufficient accuracy in
determining the levels of noise emitted and comparing the results of measurements taken by
different laboratories, whilst simulating as far as possible the practical use of washing
machines and spin extractors.
The textile load is standardized on the basis of those used for measuring performance.
To avoid unsteadiness caused by foaming, the tests are carried out with unsoiled loads and
without detergents or rinsing aids.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of properties and performance of washing machines
and spin extractors.
Compared to the first edition (1989) of this Part 2-4, the second edition additionally considers
the noise of water supply, drainage, prewash and intermediate rinse. Therefore the operating
conditions during these operations need careful attention.
NOTE As stated in the introduction to IEC 60704-1, this test code concerns airborne noise only.

60704-2-4  IEC:2001 – 11 –
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF AIRBORNE ACOUSTICAL NOISE –
Part 2-4: Particular requirements for washing machines
and spin extractors
1 Scope and object
This clause of Part 1 is applicable except as follows:
1.1 Scope
1.1.1 General
Replacement:
These particular requirements apply to single unit electric washing machines, the washing and
spinning function of combined appliances for household and similar use, and to spin extractors.
Limitations for the use of this test code are given in 1.1.1 of IEC 60704-1.
NOTE For drying function, see IEC 60704-2-6.
1.1.2 Types of noise
Replacement:
ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring noise emitted by washing
machines and spin extractors.
1.1.3 Size of the source
Replacement:
The method specified in ISO 3744 is applicable to noise sources of any size. When applying
ISO 3743-1 and ISO 3743-2, care should be taken that the maximum size of the washing
machine or spin extractor under test fulfils the requirements specified in 1.3 of ISO 3743-1 and
ISO 3743-2.
1.2 Object
Addition:
Requirements for the declaration of noise emission values are not within the scope of this
standard.
NOTE 3 For determining and verifying noise emission values declared in product specifications, see IEC 60704-3.

60704-2-4  IEC:2001 – 13 –
2 Normative references
This clause of Part 1 is applicable except as follows:
Addition:
IEC 60456:1998, Clothes washing machines for household use – Methods for measuring the
performance
3 Terms and definitions
This clause of Part 1 is applicable except as follows:
Addition:
3.101
rated capacity
maximum mass of
...