EN 50640:2018

SLOVENSKI STANDARD
01-oktober-2018
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Household and similar electric appliances - Methods for measuring the performance of
clothes washing machines intended for commercial use
Waschmaschinen für den gewerblichen Gebrauch - Verfahren zur Messung der
Gebrauchseigenschaften
Ta slovenski standard je istoveten z: EN 50640:2018
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 50640
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2018
ICS 97.060 Supersedes CLC/TS 50640:2015
English Version
Household and similar electric appliances - Methods for
measuring the performance of clothes washing machines
intended for commercial use
Waschmaschinen für den gewerblichen Gebrauch -
Appareils électrodomestiques et analogues - Méthodes de
Verfahren zur Messung der Gebrauchseigenschaften
mesure de l'aptitude à la fonction pour les machines à laver
le linge à usage commercial
This European Standard was approved by CENELEC on 2018-04-23. 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, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50640:2018 E
Contents Page
European foreword .4
1 Scope .5
2 Normative references .5
3 Terms, definitions and symbols .5
3.1 Terms and definitions .5
3.2 Symbols .9
4 Requirements . 10
4.1 General . 10
4.2 Rated Capacity . 11
4.3 Dimensions . 11
5 Test conditions, materials, equipment and instrumentation . 12
5.1 General . 12
5.2 Reference machine . 12
5.3 Ambient conditions. 12
5.4 Test materials . 14
5.5 Equipment . 16
5.6 Instrumentation and accuracy . 18
6 Preparation for testing . 19
6.1 General . 19
6.2 Test washing machine and reference machine preparation . 19
6.3 Detergent . 20
6.4 Test loads . 22
7 Performance measurements – general requirements . 27
8 Tests for performance . 28
8.1 General . 28
8.2 Test procedure for performance tests . 28
8.3 Measurements to determine washing performance . 30
8.4 Measurements to determine maximum spin speed . 31
8.5 Measurements to determine water extraction performance . 31
8.6 Measurement to determine the bath temperature . 32
8.7 Measurements to determine water and energy consumption and cycle time . 32
9 Assessment of performance . 33
9.1 General . 33
9.2 Evaluation of washing performance . 33
9.3 Evaluation of water extraction performance . 35
9.4 Evaluation of water and energy consumption and cycle time . 36
10 Data to be reported . 38
Annex A (normative) Specification of stain test strip EN/IEC-60456 . 39
Annex B (normative) Standard detergent — IEC Standard Powder Detergent 2016 (IEC-
P) . 44
Annex C (normative) Specifications for base load — Cotton/synthetics blends base
load EN 50640 – small sheet and large sheet . 46
Annex D (normative) Reference machine — Specification of the reference washing
machines and method of use . 48
Annex E (normative) Reference machine programme definitions . 51
Annex F (normative) The bone-dry method of conditioning . 54
Annex G (normative) Folding and loading the test load . 56
Annex H (normative) Measuring the wash temperature . 67
Annex I (normative) Performance testing of gas fired washing machines . 69
Annex J (normative) Performance testing of steam heated washing machines . 72
Annex K (normative) Procedure to determine test load size when rated capacity is not
declared . 82
Annex L (normative) Test procedure for a performance test of a cotton 60 programme
with full load at standard rating conditions . 86
Annex M (informative) Uncertainty of measurements in the present document . 98
Annex N (normative) Test report – Data to be reported . 101
Annex O (informative) Reporting of key parameters . 109
Bibliography . 111

European foreword
This document (EN 50640:2018) has been prepared by CLC/TC 59X “Performance of household and
similar electrical appliances”.
The following dates are fixed:
• latest date by which this document has (dop) 2019-04-23
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2021-04-23
standards conflicting with this document
have to be withdrawn
This document supersedes CLC/TS 50640:2015.
This European Standard is a new standard, but it is based on portions from EN 60456:2011.
The procedures described in this European Standard are modified substantially compared to the
procedures described in EN 60456. Therefore results of tests according to this European Standard
cannot and are bound not to be compared to results of similar procedures of EN 60456.
Significant technical differences from EN 60456 are:
a) the method includes procedures for measuring steam heated and gas heated washing
machines;
b) the introduction of a new type of base load;
c) a new reference programme;
d) a new formulation of the standard detergent.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission
and the European Free Trade Association.
1 Scope
This European Standard deals with the performance of clothes washing machines intended to be
used by trained users e.g. in hotels, hospitals, factories, in light industry and on farms. It also covers
washing machines declared for commercial use in public areas and operated by lay persons e.g. in
launderettes, apartment houses and communal laundry rooms. The clothes washing machines can
be utilizing cold and/or hot water supply and without heating or with heating devices for electricity,
steam or gas. This European Standard covers top, front and side loaded clothes washing machines
with horizontal or vertical axis and with one or more wash compartments. It also deals with appliances
for both washing and drying textiles (washer-dryers) with respect to their washing related functions
and to separate spin extractors related to their dewatering capabilities.
NOTE 1 Performance of tumble dryers declared for commercial use is assessed in EN 50594.
NOTE 2 The object is to state and define the principal performance characteristics of clothes washing
machines declared for commercial use and to describe the test methods for measuring these characteristics.
NOTE 3 This European Standard does not apply to continuous batch washing machines (e.g. tunnel
washers) or washing machines only possible to operate with automatic loading and unloading.
NOTE 4 This European Standard does not specify safety requirements for clothes washing machines
declared for commercial use. Safety requirements are specified in EN 50571 and the EN ISO 10472- series.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
EN 437:2003+A1:2009, Test gases — Test pressures — Appliance categories
CEN/TR 1749:2014, European scheme for the classification of gas appliances according to the
method of evacuation of the combustion products (types)
EN 12953-10, Shell boilers — Part 10: Requirements for feedwater and boiler water quality
EN 50571, Household and similar electrical appliances — Safety — Particular requirements for
commercial electric washing machines
EN 60456, Clothes washing machines for household use — Methods for measuring the performance
(IEC 60456)
EN 60734, Household electrical appliances — Performance — Water for testing (IEC 60734)
EN ISO 80000-1:2013, Quantities and units — Part 1: General (ISO 80000-1:2009 + Cor 1:2011)
IAPWS-IF97, IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and
Steam [International Association for the Properties of Water and Steam]
3 Terms, defin
...