IEC TR 62617:2015

Home laundry appliances - Uncertainty reporting of measurements

IEC TR 62617:2015(E) applies to uncertainty reporting of measurements of home laundry electrical appliances. It allows to estimate the uncertainty of a measured result and to predict the range of values that may be measured when the same appliance is measured in another laboratory following the same measurement method. This edition includes the following significant technical changes with respect to the previous edition:
- alternative expression of expanded uncertainties in absolute values;
- expanded uncertainty for horizontal drum washing machines according to IEC 60456:2010;
- expanded uncertainties for washer-dryer according to IEC 62512:2012;
- clarifications of the examples of expanded uncertainty calculation.

General Information

• Status: Withdrawn
• Publication Date: 22-Nov-2015
• Withdrawal Date: 29-Dec-2022
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 97.060 - Laundry appliances
• Technical Committee: SC 59D - Performance of household and similar electrical laundry appliances
• Drafting Committee: WG 18 - TC 59/SC 59D/WG 18
• Current Stage: WPUB - Publication withdrawn
• Start Date: 30-Dec-2022
• Completion Date: 03-Jan-2023

Relations

• Revises: IEC TR 62617:2010 - Home laundry appliances - Uncertainty reporting of measurements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC TR 62617 ®
Edition 2.0 2015-11
TECHNICAL
REPORT
Home laundry appliances – Uncertainty reporting of measurements

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form

or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or

your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]

CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TR 62617 ®
Edition 2.0 2015-11
TECHNICAL
REPORT
Home laundry appliances – Uncertainty reporting of measurements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.060 ISBN 978-2-8322-3033-6

– 2 – IEC TR 62617:2015 © IEC 2015

CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references . 6

3 Terms and definitions . 6

4 The approach to uncertainty measurement . 7

4.1 The importance of the uncertainty . 7
4.2 Ways to access uncertainty . 7
5 Expanded uncertainty calculation . 8
6 Absolute and relative reproducibility standard deviation . 8
7 Reporting uncertainty . 9
8 Expanded uncertainty values . 10
8.1 General . 10
th
8.2 Expanded uncertainty of measurement in IEC 60456:2003 (4 edition) . 10
th
8.3 Expanded uncertainty of measurement in IEC 60456:2010 (5 edition) . 10
rd
8.4 Expanded uncertainty of measurement in IEC 61121:2002 (3 edition) . 11
st
8.5 Expanded uncertainty of measurement in IEC 62512:2012 (1 edition) . 11
Bibliography . 14

th
Table 1 – Expanded uncertainty of measured values of IEC 60456:2003 (4 edition)
for horizontal drum washing machine . 10
th
Table 2 – Expanded uncertainty of measured values of IEC 60456:2010 (5 edition)
for horizontal axis washing machines . 11
rd
Table 3 – Expanded uncertainty of measured values of IEC 61121:2002 (3 edition)
for condenser tumble dryers . 11
st
Table 4 – Expanded uncertainty of measured values of IEC 62512:2012 (1 edition)
for horizontal-axis washer-dryer . 12
st
Table 5 – Expanded uncertainty of measured values of IEC 62512:2012 (1 edition)
for vertical-axis washer-dryer without heater . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
HOME LAUNDRY APPLIANCES –
UNCERTAINTY REPORTING OF MEASUREMENTS

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected

data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 62617, which is a Technical Report, has been prepared by subcommittee 59D:
Performance of household and similar electrical laundry appliances, of IEC technical
committee 59: Performance of household and similar electrical appliances.
This second edition cancels and replaces the first edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• alternative expression of expanded uncertainties in absolute values;
• expanded uncertainty for horizontal drum washing machines according to IEC 60456:2010;

– 4 – IEC TR 62617:2015 © IEC 2015

• expanded uncertainties for washer-dryer according to IEC 62512:2012

• clarifications of the examples of expanded uncertainty calculation.

The text of this technical report is based on the following documents:

Enquiry draft Report on voting

59D/430/DTR 59D/432/RVC
Full information on the voting for the approval of this technical report can be found in the

report on voting indicated in the above table.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
Words in bold in the text are specifically defined in Clause 3.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
To encourage the efficient use of energy and other resources, National governments and

regional authorities have issued regulations, which mandate the provision of information to

consumers regarding the energy and water consumption of household appliances and

associated performance characteristics. This information is usually conveyed by labels

attached to appliances at the point of sale and also by brochures provided by manufacturers.

Methods for measuring declared values for energy and water consumption and performance

characteristics should be of sufficient accuracy to provide confidence to governments,

consumers and manufacturers. The accuracy of a test method is expressed in terms of bias

and precision. Precision, when evaluating test methods, is expressed in terms of two
measurement concepts: repeatability and reproducibility. Therefore, standard procedures
should be used for determining the repeatability and the reproducibility of test methods
developed by technical committee 59 and its subcommittees. The repeatability of a test
method should be sufficiently accurate for comparative testing. The reproducibility of a test
method should be sufficiently accurate for the determination of values which are declared and
for checking these declared values.
Uncertainty reporting is essential to ensure measured data are interpreted in a correct way.
Especially when data of measurements are compared between laboratories or when
normative requirements are set up, it is necessary to know the uncertainty with which data
can be measured.
– 6 – IEC TR 62617:2015 © IEC 2015

HOME LAUNDRY APPLIANCES –
UNCERTAINTY REPORTING OF MEASUREMENTS

1 Scope
This Technical Report (TR) applies to uncertainty reporting of measurements of home laundry
electrical appliances.
It allows to estimate the uncertainty of a measured result and to predict the range of values
that may be measured when the same appliance is measured in another laboratory following
the same measurement method.
NOTE The provisions in this TR can also be used to evaluate other kinds of products.
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
undat
...

IEC TR 62617 ®
Edition 2.0 2015-11
TECHNICAL
REPORT
Home laundry appliances – Uncertainty reporting of measurements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TR 62617 ®
Edition 2.0 2015-11
TECHNICAL
REPORT
Home laundry appliances – Uncertainty reporting of measurements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 97.060 ISBN 978-2-8322-3033-6

– 2 – IEC TR 62617:2015 © IEC 2015
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 The approach to uncertainty measurement . 7
4.1 The importance of the uncertainty . 7
4.2 Ways to access uncertainty . 7
5 Expanded uncertainty calculation . 8
6 Absolute and relative reproducibility standard deviation . 8
7 Reporting uncertainty . 9
8 Expanded uncertainty values . 10
8.1 General . 10
th
8.2 Expanded uncertainty of measurement in IEC 60456:2003 (4 edition) . 10
th
8.3 Expanded uncertainty of measurement in IEC 60456:2010 (5 edition) . 10
rd
8.4 Expanded uncertainty of measurement in IEC 61121:2002 (3 edition) . 11
st
8.5 Expanded uncertainty of measurement in IEC 62512:2012 (1 edition) . 11
Bibliography . 14

th
Table 1 – Expanded uncertainty of measured values of IEC 60456:2003 (4 edition)
for horizontal drum washing machine . 10
th
Table 2 – Expanded uncertainty of measured values of IEC 60456:2010 (5 edition)
for horizontal axis washing machines . 11
rd
Table 3 – Expanded uncertainty of measured values of IEC 61121:2002 (3 edition)
for condenser tumble dryers . 11
st
Table 4 – Expanded uncertainty of measured values of IEC 62512:2012 (1 edition)
for horizontal-axis washer-dryer . 12
st
Table 5 – Expanded uncertainty of measured values of IEC 62512:2012 (1 edition)
for vertical-axis washer-dryer without heater . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOME LAUNDRY APPLIANCES –
UNCERTAINTY REPORTING OF MEASUREMENTS

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,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
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
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
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.
The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 62617, which is a Technical Report, has been prepared by subcommittee 59D:
Performance of household and similar electrical laundry appliances, of IEC technical
committee 59: Performance of household and similar electrical appliances.
This second edition cancels and replaces the first edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
• alternative expression of expanded uncertainties in absolute values;
• expanded uncertainty for horizontal drum washing machines according to IEC 60456:2010;

– 4 – IEC TR 62617:2015 © IEC 2015
• expanded uncertainties for washer-dryer according to IEC 62512:2012
• clarifications of the examples of expanded uncertainty calculation.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
59D/430/DTR 59D/432/RVC
Full information on the voting for the approval of this technical report can be found in the
report on voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
Words in bold in the text are specifically defined in Clause 3.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
To encourage the efficient use of energy and other resources, National governments and
regional authorities have issued regulations, which mandate the provision of information to
consumers regarding the energy and water consumption of household appliances and
associated performance characteristics. This information is usually conveyed by labels
attached to appliances at the point of sale and also by brochures provided by manufacturers.
Methods for measuring declared values for energy and water consumption and performance
characteristics should be of sufficient accuracy to provide confidence to governments,
consumers and manufacturers. The accuracy of a test method is expressed in terms of bias
and precision. Precision, when evaluating test methods, is expressed in terms of two
measurement concepts: repeatability and reproducibility. Therefore, standard procedures
should be used for determining the repeatability and the reproducibility of test methods
developed by technical committee 59 and its subcommittees. The repeatability of a test
method should be sufficiently accurate for comparative testing. The reproducibility of a test
method should be sufficiently accurate for the determination of values which are declared and
for checking these declared values.
Uncertainty reporting is essential to ensure measured data are interpreted in a correct way.
Especially when data of measurements are compared between laboratories or when
normative requirements are set up, it is necessary to know the uncertainty with which data
can be measured.
– 6 – IEC TR 62617:2015 © IEC 2015
HOME LAUNDRY APPLIANCES –
UNCERTAINTY REPORTING OF MEASUREMENTS

1 Scope
This Technical Report (TR) applies to uncertainty reporting of measurements of home laundry
electrical appliances.
It allows to estimate the uncertainty of a measured result and to predict the range of values
that may be measured when the same appliance is measured in another laboratory following
the same measurement method.
NOTE The provisions in this TR can also be used to evaluate other kinds of products.
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 TR 61923:1997, Household electrical appliances – Method of measuring performance –
Assessment o
...