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

IEC PAS 63125:2017(E) specifies methods for measuring the performance of clothes washing machines for commercial use utilizing cold and/or hot water supplies 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 PAS covers top, front and side-loaded non-household washing machines with horizontal or vertical axes and with one or more wash compartments.
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.
Non household tumble dryer performance is assessed to CLC/TS 50594.
This PAS does not apply to continuous batch washing machines (e.g. tunnel washers) or washing machines only possible to operate with automatic loading and unloading.
This PAS does not specify safety requirements for non-household washing machines. Safety requirements are specified in EN 50571 and the EN ISO 10472 series.

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Status
Published
Publication Date
27-Feb-2022
Current Stage
WPUB - Publication withdrawn
Completion Date
28-Feb-2022
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IEC PAS 63125:2017 - Clothes washing machines for commercial use - Methods for measuring the performance
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IEC PAS 63125
Edition 1.0 2017-06
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
colour
inside
Clothes washing machines for commercial use – Methods for measuring the
performance
IEC PAS 63125:2017-06(en)
---------------------- Page: 1 ----------------------
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IEC PAS 63125
Edition 1.0 2017-06
PUBLICLY AVAILABLE
SPECIFICATION
PRE-STANDARD
colour
inside
Clothes washing machines for commercial use – Methods for measuring the
performance
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.060 ISBN 978-2-8322-4520-0

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC PAS 63125:2017 © IEC 2017
CONTENTS

FOREWORD ........................................................................................................................... 8

1 Scope ............................................................................................................................ 10

2 Normative references .................................................................................................... 10

3 Terms, definitions and symbols...................................................................................... 11

3.1 Terms and definitions ............................................................................................ 11

3.2 Symbols ................................................................................................................ 14

3.2.1 Symbols relating to 9.2 – washing performance ............................................. 14

3.2.2 Symbols relating to 9.3 – water extraction (spinning) ..................................... 15

3.2.3 Symbols relating to 9.4 – energy, water and time ........................................... 15

3.2.4 Symbols relating to Annex F .......................................................................... 15

3.2.5 Symbols relating to Annex G .......................................................................... 16

4 Requirements ................................................................................................................ 16

4.1 General ................................................................................................................. 16

4.2 Rated Capacity ..................................................................................................... 16

4.3 Dimensions ........................................................................................................... 17

5 Test conditions, materials, equipment and instrumentation ............................................ 17

5.1 General ................................................................................................................. 17

5.2 Reference machine ............................................................................................... 18

5.3 Ambient conditions................................................................................................ 18

5.3.1 Electricity supply ........................................................................................... 18

5.3.2 Water supply ................................................................................................. 18

5.3.3 Ambient temperature and humidity ................................................................. 19

5.4 Test materials ....................................................................................................... 20

5.4.1 General ......................................................................................................... 20

5.4.2 Base load ...................................................................................................... 20

5.4.3 Stain test strips .............................................................................................. 20

5.4.4 Detergents ..................................................................................................... 21

5.5 Equipment ............................................................................................................ 21

5.5.1 General ......................................................................................................... 21

5.5.2 Reference machine ........................................................................................ 21

5.5.3 Spectrophotometer ........................................................................................ 21

5.5.4 Equipment for conditioning the base load ...................................................... 22

5.5.5 Iron for preparation of stain test strips after washing ...................................... 22

5.5.6 Other equipment ............................................................................................ 22

5.6 Instrumentation and accuracy ............................................................................... 23

5.6.1 General ......................................................................................................... 23

5.6.2 Instruments ................................................................................................... 23

5.6.3 Measurements ............................................................................................... 24

6 Preparation for testing ................................................................................................... 24

6.1 General ................................................................................................................. 24

6.2 Test washing machine and reference machine preparation ................................... 24

6.2.1 Test washing machine ................................................................................... 24

6.2.2 Reference machine ........................................................................................ 25

6.3 Detergent .............................................................................................................. 25

6.3.1 General ......................................................................................................... 25

6.3.2 Detergent dose .............................................................................................. 26

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IEC PAS 63125:2017 © IEC 2017 – 3 –

6.3.3 Mixing detergent ............................................................................................ 26

6.3.4 Detergent placement ..................................................................................... 26

6.3.5 Placing detergent into the drum base ............................................................. 26

6.4 Test loads ............................................................................................................. 27

6.4.1 General ......................................................................................................... 27

6.4.2 Pre-treatment of new base load items prior to use ......................................... 28

6.4.3 Requirements regarding the maximum age of base load items ....................... 28

6.4.4 Normalization of base load items before a new test series ............................. 28

6.4.5 Conditioning of base load items before a new test series ............................... 29

6.4.6 Test load composition .................................................................................... 30

6.4.7 Calculation of loads not shown in Table 3 ...................................................... 32

6.4.8 Addition of stain test strips to the base load ................................................... 32

7 Performance measurements – general requirements ..................................................... 33

8 Tests for performance.................................................................................................... 33

8.1 General ................................................................................................................. 33

8.2 Test procedure for performance tests .................................................................... 34

8.2.1 Test conditions, materials and preparation for testing .................................... 34

8.2.2 Test load and loading .................................................................................... 34

8.2.3 Programme .................................................................................................... 34

8.2.4 Test procedure .............................................................................................. 34

8.2.5 Test series ..................................................................................................... 35

8.3 Measurements to determine washing performance ................................................ 35

8.3.1 General ......................................................................................................... 35

8.3.2 Removal and drying of stain test strips .......................................................... 35

8.3.3 Assessment of stain test strips ...................................................................... 36

8.4 Measurements to determine maximum spin speed ................................................ 36

8.5 Measurements to determine water extraction performance .................................... 37

8.5.1 General ......................................................................................................... 37

8.5.2 Washing machines......................................................................................... 37

8.5.3 Spin extractors .............................................................................................. 37

8.6 Measurement to determine the bath temperature .................................................. 37

8.7 Measurements to determine water and energy consumption and programme

time ...................................................................................................................... 38

8.7.1 General ......................................................................................................... 38

8.7.2 Procedure ...................................................................................................... 38

8.7.3 Measurement of energy supplied by electricity ............................................... 38

8.7.4 Measurement of energy supplied by steam .................................................... 38

8.7.5 Measurement of energy supplied by gas ........................................................ 38

8.7.6 Measurement of energy consumed via compressed air .................................. 38

9 Assessment of performance .......................................................................................... 39

9.1 General ................................................................................................................. 39

9.2 Evaluation of washing performance ....................................................................... 39

9.3 Evaluation of water extraction performance ........................................................... 41

9.4 Evaluation of water and energy consumption and programme time ....................... 41

9.4.1 General ......................................................................................................... 41

9.4.2 Water volumes ............................................................................................... 41

9.4.3 Bath temperature ........................................................................................... 41

9.4.4 Programme time ............................................................................................ 41

9.4.5 Energy consumption ...................................................................................... 42

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– 4 – IEC PAS 63125:2017 © IEC 2017

10 Data to be reported........................................................................................................ 43

Annex A (normative) Specification of stain test strips with standardized soiling .................... 44

A.1 Artificial soils ........................................................................................................ 44

A.2 Supporting fabric for soil ....................................................................................... 44

A.2.1 Material ......................................................................................................... 44

A.2.2 Weaving ........................................................................................................ 44

A.2.3 Pre-treatment ................................................................................................ 45

A.2.4 Reproducibility ............................................................................................... 45

A.3 Artificial soil .......................................................................................................... 45

A.3.1 Soiling composition ........................................................................................ 45

A.4 Stain test strips ..................................................................................................... 46

A.4.1 Application of soil .......................................................................................... 46

A.4.2 Soil checking after deposition of soil .............................................................. 46

A.4.3 Washed reflectance values ............................................................................ 46

A.5 Marking of stain test strips and accompanying data .............................................. 47

A.6 Advice for users .................................................................................................... 47

A.7 Suppliers .............................................................................................................. 47

Annex B (normative) Reference detergents – Reference detergent A* ................................. 48

Annex C (normative) Specifications for base load – Cotton/synthetics base loads ................ 50

Annex D (normative) Reference machine specification – Specification of the reference

washing machines and method of use ................................................................................... 52

D.1 General ................................................................................................................. 52

D.2 Further Information ............................................................................................... 52

D.3 Reference machine: method of use ....................................................................... 52

D.3.1 Installation of the reference machine ............................................................. 52

D.3.2 Regular maintenance ..................................................................................... 52

D.3.3 Before test series .......................................................................................... 53

D.3.4 During a test series ....................................................................................... 54

Annex E (normative) Reference machine programme definitions .......................................... 55

E.1 General ................................................................................................................. 55

E.2 Programming instructions ..................................................................................... 55

E.3 Tolerances ............................................................................................................ 55

E.4 Start-up programme .............................................................................................. 55

Annex F (normative) The bone-dry method of conditioning ................................................... 58

F.1 General ................................................................................................................. 58

F.2 Tumble dryer specifications .................................................................................. 58

F.3 Bone dry procedure – Electric dryers .................................................................... 58

F.4 Bone dry procedure – Gas dryers .......................................................................... 59

Annex G (normative) Folding and loading the test load ........................................................ 60

G.1 General ................................................................................................................. 60

G.2 Folding the items prior to loading the washing machine ........................................ 60

G.2.1 General ......................................................................................................... 60

G.2.2 Test load ....................................................................................................... 60

G.3 Loading Items into the washing machine – general rules ....................................... 62

G.3.1 Machine type ................................................................................................. 62

G.3.2 Loading sequences ........................................................................................ 63

G.4 Loading requirements for the test load – horizontal axis washing machines .......... 65

G.4.1 General loading directions ............................................................................. 65

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IEC PAS 63125:2017 © IEC 2017 – 5 –

G.4.2 Horizontal axis washing machine: loading step by step .................................. 65

G.4.3 Loading the horizontal axis machines ............................................................ 68

G.5 Loading requirements for vertical axis washing machines ..................................... 69

G.5.1 General loading directions ............................................................................. 69

G.5.2 Vertical axis washing machine: loading step by step ...................................... 69

G.6 Loading of multi compartment machines ............................................................... 69

G.6.1 General loading information ........................................................................... 69

G.6.2 Loading procedure ......................................................................................... 69

G.7 Performance testing with loads other than a full load – General information .......... 69

G.8 Calculation of the composition of test load items for load sizes above 10 kg

and not shown in the Table 2 or Table 3 ............................................................... 69

G.8.1 General ......................................................................................................... 69

G.8.2 Calculation of the load composition is done according to following

formula: ......................................................................................................... 69

Annex H (normative) Measuring the bath temperature ......................................................... 71

H.1 General ................................................................................................................. 71

H.2 Specification of the loggers ................................................................................... 71

H.3 Preparation of the loggers before measurement .................................................... 71

H.4 Number of loggers ................................................................................................ 71

H.5 Measuring the temperature ................................................................................... 72

H.6 Presenting the result ............................................................................................. 72

Annex I (informative) Performance testing of gas fired washing machines ............................ 73

I.1 General ................................................................................................................. 73

I.2 Installation, testing procedure and calculation of supplied gas energy ................... 73

Annex J (normative) Performance testing of steam heated washing machines ..................... 74

J.1 General ................................................................................................................. 74

J.2 Types of steam heating ......................................................................................... 74

J.2.1 Direct steam heating ...................................................................................... 74

J.2.2 Indirect steam heating ................................................................................... 74

J.3 Specification of steam properties .......................................................................... 74

J.3.1 Type of steam ................................................................................................ 74

J.3.2 Steam generator ............................................................................................ 74

J.4 Equipment and instrumentation ............................................................................. 74

J.4.1 Test equipment for measuring the characteristics of steam ............................ 74

J.4.2 Instruments ................................................................................................... 75

J.4.3 Measurements ............................................................................................... 75

J.5 Installation ............................................................................................................ 76

J.5.1 General ......................................................................................................... 76

J.5.2 Installation of the measure equipment for direct steam heated washing

machines ....................................................................................................... 76

J.5.3 Installation of the measurement equipment for indirect steam heated

washing machines (alternative 1) ................................................................... 77

J.5.4 Installation of the measurement equipment for indirect steam heated

washing machines (alternative 2) ................................................................... 77

J.6 Preparation for testing .......................................................................................... 78

J.6.1 General ......................................................................................................... 78

J.6.2 Direct heated washing machines and indirect heated washing machines

installed according to alternative 1 ................................................................. 78

J.6.3 Indirect heated washing machines installed according to alternative 2 ........... 79

J.7 Tests for performance ........................................................................................... 79

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– 6 – IEC PAS 63125:2017 © IEC 2017

J.7.1 General ......................................................................................................... 79

J.7.2 Performance testing of direct steam heated washing machines...................... 79

J.7.3 Performance testing of indirect steam heated washing machines

installed according to alternative 1 ................................................................. 79

J.7.4 Performance testing of indirect heated washing machines installed

according to alternative 2 .............................................................................. 80

J.8 Assessment of performance .................................................................................. 81

J.8.1 General ......................................................................................................... 81

J.8.2 Evaluation of performance of direct steam heated washing machines ............ 81

J.8.3 Evaluation of performance of indirect heated washing machines

installed according to Alternative 1 ................................................................ 81

J.8.4 Evaluation of performance of indirect heated washing machines

installed according to Alternative 2 ................................................................ 82

J.8.5 Evaluation of total energy supplied to the washing machine by steam ............ 82

J.9 Data to be reported ............................................................................................... 82

Annex K (normative) Procedure to determine test load size when rated capacity is not

declared................................................................................................................................ 83

K.1 General ................................................................................................................. 83

K.2 Determination of the test load mass ...................................................................... 83

K.3 Determination of the drum volume......................................................................... 83

Annex L (informative) Uncertainty of measurements in the present document ...................... 87

L.1 Why is uncertainty important? ............................................................................... 87

L.2 Documents referenced in this annex ..................................................................... 87

L.3 Ways to access uncertainty ................................................................................... 87

L.3.1 General ......................................................................................................... 87

L.3.2 The bottom up method ................................................................................... 87

L.3.3 The top down method .................................................................................... 88

L.4 Uncertainty of measurement in the present document ........................................... 88

L.5 Reporting uncertainty ............................................................................................ 89

Annex M (normative) Test report – Data to be reported ........................................................ 90

M.1 General ................................................................................................................. 90

M.2 Data for test washing machine .............................................................................. 90

M.3 Data, parameters and results for the test series .................................................... 90

M.4 Materials used for the test series ................................................................

...

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