IEC PAS 63125:2017

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
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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

– 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

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

– 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

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

– 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 . 94
M.5 Standard Equipment used for the test series . 95
Annex N (informative) Sources of materials and supplies . 97
N.1 General . 97
N.2 Suppliers for Reference Machine . 97
N.3 Suppliers for Test Materials . 97
Bibliography . 98

Figure 1 – Load item preparation prior to a test series . 28
Figure 2 – Attached test strip . 32
Figure 3 – Positions for measuring soiled test pieces . 36
Figure G.1 – Folding medium sheet with a stain test strip attached . 61
Figure G.2 – Folding small sheet . 61
Figure G.3 – Folding medium sheets . 62
Figure G.4 – Folding large sheets . 62

Figure G.5 – Illustration of horizontal axis washing machine . 63
Figure G.6 – Illustration of vertical axis washing machine . 63
Figure G.7 – Horizontal axis washing machine: placement of items in the drum . 64
Figure G.8 – Vertical axis washing machine: placement of items in the drum . 65
Figure G.9 – Schematic view of part loads within a large drum . 68
Figure J.1 – Schematic installation of the measurement equipment for direct steam
heated washing machines . 76
Figure J.2 – Schematic installation of the measurement equipment for indirect steam
heated washing machine (alternative 1) . 77
Figure J.3 – Schematic installation of the measurement equipment for indirect steam
heated washing machine (Alternative 2) . 78
Figure K.1 – Cross section of drum and lifter . 84
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 . 86
1 2
Table 1 – Size and mass of the different base load items . 20
Table 2 – Detergent Dose . 26
Table 3 – Number of different load items in the test load for various test load masses . 31
Table A.1 – Ratios and tolerances of standardized soils: Reference Machine CLS . 47
Table B.1 – Composition of the reference detergent A* . 48
Table C.1 – Specification of the cotton/synthetics base loads . 50
Table D.1 – Description of the reference washing machine and method of use . 53
Table E.1 – Specification of reference washing programme . 56
Table E.2 – Tolerances given for some procedure parameters . 57
Table G.1 – Orientation of test load items within a part load . 65
Table G.2 – Part load items for a 15 kg test load . 66
Table G.3 – Part load items for a 5 kg test load . 67
Table G.4 – Part load items for a 10 kg test load . 67
Table G.5 – Part load items for a 20 kg test load . 67
Table G.6 – Part load items for a 100 kg test load . 68
Table H.1 – Specification of temperature logger suitable for temperature measurement
for both washing and drying . 71
Table H.2 – Number of temperature loggers for bath temperature measurement . 72
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 . 95
Table M.4 – Equipment . 96

– 8 – IEC PAS 63125:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CLOTHES WASHING MACHINES FOR COMMERCIAL USE –
METHODS FOR MEASURING THE PERFORMANCE

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,
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agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
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interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
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6) All users should ensure that they have the latest edition of this publication.
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
A PAS is an intermediate specification not fulfilling the requirements for a standard, but made
available to the public.
IEC PAS 63125 has been processed by subcommittee 59D: Performance of household and
similar electrical laundry appliances, of IEC technical committee 59: Performance of
household and similar electrical appliances.
The text of this PAS is based on the This PAS was approved for
following document: publication by the P-members of the
committee concerned as indicated in
the following document
Draft PAS Report on voting
59D/448/DPAS 59D/452/RVDPAS
Following publication of this PAS, which is a pre-standard publication, the technical committee
or subcommittee concerned may transform it into an International Standard.

This document is based on CLC/TS 50640:2015.
This PAS shall remain valid for an initial maximum period of 2 years starting from the
publication date. The validity may be extended for a single period up to a maximum of
2 years, at the end of which it shall be published as another type of normative document, or
shall be withdrawn.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 10 – IEC PAS 63125:2017 © IEC 2017
CLOTHES WASHING MACHINES FOR COMMERCIAL USE –
METHODS FOR MEASURING THE PERFORMANCE

1 Scope
This PAS 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.
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 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.
NOTE 3 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.
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.
IEC 60456, Clothes washing machines for household use – Methods for measuring the
performance
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)
DIN 53923, Testing of textiles; determination of water absorption of textile fabrics
CIE 015:2004 , Colorimetry (3rd edition)
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.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
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 PAS 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
re
...