Clothes washing machines for commercial use - Methods for measuring the performance

This Technical Specification specifies methods for measuring the performance of clothes washing machines for commercial use utilizing cold and/or hot water supply and without heating or with heating devices for electricity, steam or gas. It also deals with appliances for both washing and drying textiles (washer-dryers) with respect to their washing related functions. This Technical Specification covers top, front and side loaded non household washing machines with horizontal or vertical axis and with one or more wash compartments. NOTE 1 Non household tumble dryer performance is assessed to CLC/TS 50594. NOTE 2 Installation and energy calculations of non-household washing machines heated with gas is assessed in EN ZZZZZ. The object is to state and define the principal performance characteristics of non-household washing machines and to describe the test methods for measuring these characteristics. NOTE 3 This Technical Specification 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 Technical Specification does not specify safety requirements for non-household washing machines. Safety requirements are specified in EN 50571 and the EN ISO 10472 series.

Waschmaschinen für den gewerblichen Gebrauch - Verfahren zur Messung der Gebrauchseigenschaften

Die vorliegende Technische Spezifikation spezifiziert Methoden für die Messung der Gebrauchseigen¬schaften von Waschmaschinen für den gewerblichen Gebrauch, welche Kalt- und/oder Warmwasser¬versorgung verwenden und keine Heizung oder Heizgeräte für Elektrizität, Dampf oder Gas aufweisen. Sie behandelt auch Geräte sowohl für Waschen und Trocknen (Waschtrockner) hinsichtlich ihrer auf Waschen bezogenen Funktionen. Die vorliegende Technische Spezifikation deckt von oben, von vorn und seitlich beladene, nicht für den Hausgebrauch vorgesehene Waschmaschinen mit horizontaler oder vertikaler Achse und mit einer oder mehr Waschkammer(n) ab. ANMERKUNG 1 Die Gebrauchseigenschaften von nicht für den Haushaltsgebrauch bestimmten Wäschetrocknern werden in CLC/FprTS 50594 behandelt. ANMERKUNG 2 Aufstellungen und Energieberechnungen von nicht für den Haushaltsgebrauch bestimmten Wasch¬maschinen, welche mit Gas oder Dampf beheizt werden, werden in EN ZZZZZ behandelt. Das Ziel ist die Angabe und Definition der prinzipiellen Gebrauchseigenschaften von nicht für den Haus-haltsgebrauch bestimmten Waschmaschinen, und die Beschreibung der Prüfverfahren für die Messung dieser Eigenschaften. ANMERKUNG 3 Die vorliegende Technische Spezifikation ist nicht anwendbar für Durchlaufwaschmaschinen (z. B. Tunnelwaschmaschinen) oder Waschmaschinen, welche nur mit automatischer Beladung und Entladung betrieben werden können. ANMERKUNG 4 Die vorliegende Technische Spezifikation legt keine Sicherheitsanforderungen für nicht für den Haushaltsgebrauch bestimmte Waschmaschinen fest. Sicherheitsanforderungen sind in EN 50571 und der Normenreihe EN ISO 10472 festgelegt.

Pralni stroji za komercialno uporabo - Metode za merjenje funkcionalnosti

General Information

Status
Withdrawn
Publication Date
23-Apr-2015
Current Stage
6060 - Document made available
Due Date
19-Mar-2015

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SLOVENSKI STANDARD
SIST-TS CLC/TS 50640:2015
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
SIST-TS CLC/TS 50640:2015 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CLC/TS 50640:2015
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SIST-TS CLC/TS 50640:2015
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
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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

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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

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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 ........................................................................................................................ 97

Figure 1 — Load item preparation prior to a test series ................................................... 25

Figure 2 — Attached test strip ........................................................................................... 29

Figure 3 – Positions for measuring soiled test pieces ...................................................... 33

Figure G.1 — Folding medium sheet with a stain test strip attached ............................... 59

Figure G.2 — Folding small sheet ..................................................................................... 59

Figure G.3 — Folding medium sheets ................................................................................ 60

Figure G.4 — Folding large sheets ..................................................................................... 60

Figure G.5 — Illustration of horizontal axis washing machine ......................................... 61

Figure G.6 — Illustration of vertical axis washing machine ............................................. 61

Figure G.7 — Horizontal axis washing machine: placement of items in the drum .......... 62

Figure G.8 — Vertical axis washing machine: placement of items in the drum ............... 63

Figure G.9 — Schematic view of part loads within a large drum ...................................... 66

Figure J.1 — Schematic installation of the measurement equipment for direct

steam heated washing machines ................................................................................. 75

Figure J.2 — Schematic installation of the measurement equipment for indirect

steam heated washing machine (Alternative 1) .......................................................... 76

Figure J.3 — Schematic installation of the measurement equipment for indirect

steam heated washing machine (Alternative 2) .......................................................... 77

Figure K.1 — Cross section of drum and lifter .................................................................. 83

Figure K.2 — Figure showing how the drum diameter d shall be measured for

different kind of drum perforation ............................................................................... 84

Figure K.3 — Definition of volumes V to V ...................................................................... 85

3 6

Figure K.4 — Definition of volume V and V ..................................................................... 85

1 2
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Table 1 — Size and mass of the different base load items ............................................... 17

Table 2 — Detergent Dose .................................................................................................. 24

Table 3 — Number of different load items in the test load for various test load

masses .......................................................................................................................... 28

Table A.1 — Ratios and tolerances of standardized soils: Reference Machine CLS ....... 45

Table B.1 — Composition of the reference detergent A* .................................................. 46

Table C.1 — Specification of the Cotton/synthetics base loads ....................................... 48

Table D.1 — Description of the reference washing machine and method of use ............ 51

Table E.1 — Specification of reference washing programme ........................................... 54

Table E.2 — Tolerances given for some procedure parameters ....................................... 55

Table G.1 — Orientation of test load items within a part load .......................................... 63

Table G.2 — Part load items for a 15 kg test load ............................................................. 64

Table G.3 — Part load items for a 5 kg test load ............................................................... 65

Table G.4 — Part load items for a 10 kg test load ............................................................. 65

Table G.5 — Part load items for a 20 kg test load ............................................................. 65

Table G.6 — Part load items for a 100 kg test load ........................................................... 66

Table H.1 — Specification of temperature logger suitable for temperature

measurement for both washing and drying ................................................................. 69

Table H.2 — Number of temperature loggers for bath temperature measurement .......... 70

Table M.1 — Data for test washing machine ...................................................................... 90

Table M.2.1 — Data, parameters and results ..................................................................... 91

Table M.2.2 — Performance results of the test washing machine .................................... 94

Table M.3 — Materials ......................................................................................................... 94

Table M.4 — Equipment ...................................................................................................... 95

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Foreword

This document (CLC/TS 50640:2015) has been prepared by CLC/TC 59X "Performance of household

and similar electrical appliances".

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 pa-

tent rights.

This document has been prepared under a mandate given to CENELEC by the European Commission

and the European Free Trade Association.

This is a new Technical Specification, but it is based on portions from EN 60456:2011.

This Technical Specification is the main body of a forthcoming European Standard for measuring the

performance of non-household washing machines. The content of this Technical Specification will be

added with the Annex ZZ when the details regarding Ecodesign regulations are defined.

The procedures described in this Technical Specification are modified substantially compared to the

procedures described in EN 60456. Therefore, results of tests according to this Technical

Specification cannot and are bound not to be compared to results of similar procedures of EN 60456.

Significant technical differences from EN 60456 are:
a) test procedures for washing machines of any size on the market;

b) the method includes procedures for measuring steam heated and gas heated washing machines;

c) the introduction of a new type of base load;
d) a new reference programme.

NOTE CLC/TS 50640:2015 is planned to be a European Standard for the energy measurement of gas

heated laundry equipment.
A bilingual version of this publication may be issued at a later date.
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1 Scope

This Technical Specification specifies methods for measuring the performance of clothes washing

machines for commercial use utilizing cold and/or hot water supply and without heating or with

heating devices for electricity, steam or gas. It also deals with appliances for both washing and drying

textiles (washer-dryers) with respect to their washing related functions. This Technical Specification

covers top, front and side loaded non household washing machines with horizontal or vertical axis

and with one or more wash compartments.
NOTE 1 Non household tumble dryer performance is assessed to CLC/TS 50594.

The object is to state and define the principal performance characteristics of non-household washing

machines and to describe the test methods for measuring these characteristics.

NOTE 2 This Technical Specification 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 3 This Technical Specification does not specify safety requirements for non-household washing

machines. Safety requirements are specified in EN 50571 and the EN ISO 10472 series.

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.

EN 12127, Textiles — Fabrics — Determination of mass per unit area using small samples

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 60734, Household electrical appliances — Performance — Water for testing (IEC 60734)

EN ISO 2060, Textiles — Yarn from packages — Determination of linear density (mass per unit

length) by the skein method (ISO 2060)

EN ISO 2061, Textiles — Determination of twist in yarns — Direct counting method (ISO 2061)

EN ISO 3759, Textiles — Preparation, marking and measuring of fabric specimens and garments in

tests for determination of dimensional change (ISO 3759)
EN ISO 11664-2, Colorimetry — Part 2: CIE standard illuminants (ISO 11664-2)

EN ISO 80000-1:2013, Quantities and units — Part 1: General (ISO 80000-1:2009 + Cor 1:2011)

IEC 60456, Clothes washing machines for household use — Methods for measuring the performance

DIN 53923, Testing of textiles; determination of water absorption of textile fabrics

CIE 015:2004 , Colorimetry (3rd edition)
———————
1) Address (International Commission on Illumination):
The CIE Central Bureau
Kegelgasse 27, A-1030 Vienna, Austria
Tel: +43 (01) 714 31 87
Fax: +43 (01) 713 0838
E-mail: ciecb@ping.at
http://www.cie.co.at/favicon.ico
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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, definitions and symbols
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
washing machine

appliance for cleaning and rinsing of textiles using water which may also have a means of extracting

excess water from the textiles
3.1.2
test washing machine

washing machine that is subjected to part or all of the requirements in this Technical Specification in

order to determine its performance

Note 1 to entry: Test washing machine may include washing machines according to 3.1.6, 3.1.7.

3.1.3
reference machine

specially constructed washing machine of known performance which is used to increase repeatability

and reproducibility of results

Note 1 to entry: It may be used to provide a known performance level within a laboratory against which to

compare selected performance parameters on test washing machines as defined in this Technical Specification

– refer to 5.5.2.
3.1.4
washer-dryer

washing machine which includes both a spin extraction function and also a means for drying the

textiles, usually by heating and tumbling

Note 1 to entry: This Technical Specification only covers the operations which relate to the washing

machine function – see Clause 1.
3.1.5
spin extractor

separate water-extracting appliance in which water is removed from textiles by centrifugal action (spin

extraction)
3.1.6
vertical axis washing machine

washing machine in which the load is placed in a drum which rotates around an axis which is vertical

or close to vertical.

Note 1 to entry: For the purposes of this Technical Specification, vertical axis is where the angle of the

axis of rotation is more than 45 ° to horizontal. Where the drum does not rotate, the washing machine will be

classified as a vertical axis washing machine.

Note 2 to entry: The classification of vertical axis or horizontal axis in this Technical Specification is only

used to define the placement of the load into the drum.
3.1.7
horizontal axis washing machine

washing machine in which the load is placed in a drum which rotates around an axis which is

horizontal or close to horizontal
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Note 1 to entry: For the purposes of this Technical Specification, horizontal axis is where the angle of the

axis is less than or equal to 45° to horizontal.

Note 2 to entry: The classification of vertical axis or horizontal axis in this Technical Specification is only

used to define the placement of the load into the drum.
3.1.8
automatic machine

washing machine where the load is fully treated by the machine without the need for user

intervention at any point during the programme prior to its completion
3.1.9
top loaded machine

washing machine where the load is placed in the wash compartment from the top, and which may be

of a horizontal or vertical axis type
3.1.10
side loaded machine

washing machine where the load is placed in the wash compartment from the side, and which is of a

horizontal axis type
3.1.11
pullman machine
washing machine where the wash compartment is divided in two compartments
3.1.12
Y-pocket machine
washing machine where the wash compartment is divided in three compartments
3.1.13
test run

single performance assessment as specified in Clause 8 of this Technical Specification

3.1.14
test series

group of test runs on a test washing machine which, collectively, are used to assess the

performance of a washing machine
3.1.15
operation

each performance of a function that occurs during the washing machine programme such as pre-

wash, washing, rinsing, draining or spinning
3.1.16
programme

series of operations which are pre-defined within the washing machine and which are declared by

the manufacturer as suitable for washing certain textile types
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3.1.17
cycle

complete washing process, as defined by the programme selected, consisting of a series of

operations (wash, rinse, spin, etc.) and including any operations that occur after the completion of

the programme

Note 1 to entry: Examples of operations that may occur after the completion of the programme are

pumping, monitoring and anti-creasing (where applicable).
3.1.18
spin extraction

water-extracting function by which water is removed from textiles by centrifugal action, which is

included as a function (built in operation) of an automatic washing machine but may also be

performed in a spin extr
...

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