CLC/TS 50640:2015

SLOVENSKI STANDARD
01-junij-2015
Pralni stroji za komercialno uporabo - Metode za merjenje funkcionalnosti
Clothes washing machines for commercial use - Methods for measuring the performance
Waschmaschinen für den gewerblichen Gebrauch - Verfahren zur Messung der
Gebrauchseigenschaften
Ta slovenski standard je istoveten z: CLC/TS 50640:2015
ICS:
97.060 Aparati za nego perila Laundry appliances
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

TECHNICAL SPECIFICATION CLC/TS 50640

SPÉCIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION
April 2015
ICS 97.060
English Version
Clothes washing machines for commercial use - Methods for
measuring the performance
Waschmaschinen für den gewerblichen Gebrauch -
Verfahren zur Messung der Gebrauchseigenschaften
This Technical Specification was approved by CENELEC on 2015-01-26.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force.

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.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. CLC/TS 50640:2015 E
Contents Page
Foreword . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and symbols. 8
3.1 Terms and definitions . 8
3.2 Symbols . 11
3.2.1 Symbols relating to 9.2 – washing performance . 11
3.2.2 Symbols relating to 9.3 – water extraction (spinning) . 12
3.2.3 Symbols relating to 9.4 – energy, water and time . 12
3.2.4 Symbols relating to Annex F . 12
3.2.5 Symbols relating to Annex G . 12
4 Requirements. 13
4.1 General . 13
4.2 Rated Capacity . 13
4.3 Dimensions . 14
5 Test conditions, materials, equipment and instrumentation . 14
5.1 General . 14
5.2 Reference machine . 15
5.3 Ambient conditions . 15
5.3.1 Electricity supply . 15
5.3.2 Water supply . 15
5.3.3 Ambient temperature and humidity . 16
5.4 Test materials . 17
5.4.1 General . 17
5.4.2 Base load . 17
5.4.3 Stain test strips . 17
5.4.4 Detergents . 18
5.5 Equipment . 18
5.5.1 General . 18
5.5.2 Reference machine . 18
5.5.3 Spectrophotometer . 19
5.5.4 Equipment for conditioning the base load . 19
5.5.5 Iron for preparation of stain test strips after washing . 20
5.5.6 Other equipment . 20
5.6 Instrumentation and accuracy . 20
5.6.1 General . 20
5.6.2 Instruments . 21
5.6.3 Measurements. 22
6 Preparation for testing . 22
6.1 General . 22
6.2 Test washing machine and reference machine preparation . 22
6.2.1 Test washing machine . 22
6.2.2 Reference machine . 23
6.3 Detergent . 23

– 3 – CLC/TS 50640:2015
6.3.1 General . 23
6.3.2 Detergent dose . 24
6.3.3 Mixing detergent . 24
6.3.4 Detergent placement . 24
6.3.5 Placing detergent into the drum base . 24
6.4 Test loads . 25
6.4.1 General . 25
6.4.2 Pre-treatment of new base load items prior to use . 26
6.4.3 Requirements regarding the maximum age of base load items . 26
6.4.4 Normalization of base load items before a new test series . 26
6.4.5 Conditioning of base load items before a new test series . 26
6.4.6 Test load composition . 27
6.4.7 Calculation of loads not shown in Table 3 . 29
6.4.8 Addition of stain test strips to the base load . 29
7 Performance measurements – general requirements . 30
8 Tests for performance . 30
8.1 General . 30
8.2 Test procedure for performance tests . 31
8.2.1 Test conditions, materials and preparation for testing . 31
8.2.2 Test load and loading . 31
8.2.3 Programme . 31
8.2.4 Test procedure . 31
8.2.5 Test series . 32
8.3 Measurements to determine washing performance . 32
8.3.1 General . 32
8.3.2 Removal and drying of stain test strips . 33
8.3.3 Assessment of stain test strips . 33
8.4 Measurements to determine maximum spin speed . 34
8.5 Measurements to determine water extraction performance . 34
8.5.1 General . 34
8.5.2 Washing machines . 34
8.5.3 Spin extractors . 34
8.6 Measurement to determine the bath temperature . 34
8.7 Measurements to determine water and energy consumption and
programme time . 35
8.7.1 General . 35
8.7.2 Procedure. 35
8.7.3 Measurement of energy supplied by electricity . 35
8.7.4 Measurement of energy supplied by steam . 35
8.7.5 Measurement of energy supplied by gas . 35
8.7.6 Measurement of energy consumed via compressed air . 35
9 Assessment of performance . 36
9.1 General . 36
9.2 Evaluation of washing performance . 36
9.3 Evaluation of water extraction performance . 38
9.4 Evaluation of water and energy consumption and programme time. 39
9.4.1 General . 39
9.4.2 Water volumes . 39
9.4.3 Bath temperature . 39

9.4.4 Programme time . 39
9.4.5 Energy consumption . 39
10 Data to be reported . 41
Annex A (normative) Specification of stain test strips with standardized soiling . 42
Annex B (normative) Reference detergents — Reference detergent A* . 46
Annex C (normative) Specifications for base load — Cotton/synthetics base
loads . 48
Annex D (normative) Reference machine specification — Specification of the
reference washing machines and method of use . 50
Annex E (normative) Reference machine programme definitions . 53
Annex F (normative) The bone-dry method of conditioning . 56
Annex G (normative) Folding and loading the test load . 58
Annex H (normative) Measuring the bath temperature . 69
Annex I (informative) Performance testing of gas fired washing machines . 71
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 (informative) Uncertainty of measurements in the present document . 86
Annex M (normative) Test report – Data to be reported . 90
Annex N (informative) Sources of materials and supplies. 96
Bibliography .
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