IEC 60704-2-8:2020
(Main)Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
IEC 60704-2-8:2020 is available as IEC 60704-2-8:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60704-2-8:2020 applies to electric shavers, clippers or trimmers for domestic and similar use, supplied from mains or secondary batteries or primary batteries. The term "similar use" is understood to mean the use in hotels, hospitals, shops, offices, etc. This document does not apply to shavers, clippers or trimmers that are powered by means other than electrical, for example by a spring-device. If possible, this document can also be applied to analogous electrically operated devices, such as depilating devices. This second edition cancels and replaces the first edition published in 1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) the scope of the products has been enlarged to include hair clippers and trimmers;
b) it includes standard deviations of sound power levels in 1.1.3;
c) the normative references have been updated (ISO 3744:2010 and ISO 3743-1:2010);
d) it is adjusted with respect to IEC 60704-1:2010;
e) it has been updated to comply with the ISO/IEC Directives, Part 2.
This Part 2-8 is intended to be used in conjunction with third edition (2010) of IEC 60704-1, Household and similar electrical appliances - Test code for the determination of airborne acoustical noise - Part 1: General requirements. This Part 2-8 supplements or modifies the corresponding clauses in IEC 60704-1:2010, so as to establish the test code for shavers, hair clippers or trimmers.
Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 2-8: Exigences particulières pour les rasoirs et les tondeuses à barbe ou à cheveux électriques
IEC 60704-2-8:2020 est disponible sous forme de IEC 60704-2-8:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60704-2-8:2020 s'applique aux rasoirs et aux tondeuses à barbe ou à cheveux électriques pour usages domestiques et analogues, alimentés à partir du réseau ou par piles ou accumulateurs. Le terme "usages analogues" couvre les usages dans les hôtels, hôpitaux, magasins, bureaux, etc. Le présent document ne s'applique pas aux rasoirs et aux tondeuses à barbe ou à cheveux qui ne sont pas alimentés par des moyens électriques (mais par un dispositif à ressort, par exemple). Si possible, le présent document peut également être appliqué aux appareils électriques analogues tels que les appareils d'épilation. Cette deuxième édition annule et remplace la première édition parue en 1997. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) le domaine d'application des produits a été élargi aux tondeuses à barbe et à cheveux;
b) des écarts-types sont fournis pour les niveaux de puissance acoustique au 1.1.3;
c) les références normatives ont été mises à jour (ISO 3744:2010 et ISO 3743-1:2010);
d) le présent document a fait l'objet de réajustements par rapport à l'IEC 60704-1:2010;
e) le présent document a été mis à jour pour être conforme aux Directives ISO/IEC, Partie 2.
La présente Partie 2-8 est destinée à être utilisée conjointement avec la troisième édition (2010) de l'IEC 60704-1, Appareils électrodomestiques et analogues - Code d'essai pour la détermination du bruit aérien - Partie 1: Exigences générales. La présente Partie 2-8 complète ou modifie les articles correspondants de l’IEC 60704-1:2010, de façon à constituer le code d'essai pour les rasoirs et les tondeuses à barbe ou à cheveux.
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IEC 60704-2-8 ®
Edition 2.0 2020-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
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
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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
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variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC 60704-2-8 ®
Edition 2.0 2020-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.140.20; 97.170 ISBN 978-2-8322-7976-2
– 2 – IEC 60704-2-8:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 6
1 Scope and object . 7
2 Normative references . 8
3 Terms and definitions . 8
4 Measurement methods and acoustical environments . 9
5 Instrumentation . 10
6 Operation and location of appliances under test . 10
7 Measurement of sound pressure levels . 14
8 Calculation of sound pressure and sound power levels . 15
9 Information to be recorded . 15
10 Information to be reported . 15
Annexes . 16
Annex B (normative) Standard test table Test enclosure . 16
Bibliography . 17
Figure 101 – Isometric position views of the shaver, hair clipper or trimmer . 14
Table 101 – Standard deviations of sound power levels . 8
Table 102 – Standard deviations for declaration and verification . 8
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF
AIRBORNE ACOUSTICAL NOISE –
Part 2-8: Particular requirements for electric shavers,
hair clippers or trimmers
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.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.
– 4 – IEC 60704-2-8:2020 RLV © IEC 2020
International Standard IEC 60704-2-8 has been prepared by subcommittee 59L: Small
household appliances, of IEC technical committee 59: Performance of household and similar
electrical appliances.
This second edition cancels and replaces the first edition published in 1997. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the scope of the products has been enlarged to include hair clippers and trimmers;
b) it includes standard deviations of sound power levels in 1.1.3;
c) the normative references have been updated (ISO 3744:2010 and ISO 3743-1:2010);
d) it is adjusted with respect to IEC 60704-1:2010;
e) it has been updated to comply with the ISO/IEC Directives, Part 2.
The text of this standard is based on the following documents:
FDIS Report on voting
59L/176/FDIS 59L/177/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-8 is intended to be used in conjunction with third edition (2010) of IEC 60704-1,
Household and similar electrical appliances – Test code for the determination of airborne
acoustical noise – Part 1: General requirements.
The relevant text of IEC 60704-1:2010 as amended by this standard establishes the test code
for shavers, hair clippers or trimmers.
This Part 2-8 supplements or modifies the corresponding clauses in IEC 60704-1:2010, so as
to establish the test code for shavers, hair clippers or trimmers. When a particular subclause
of IEC 60704-1:2010 is not mentioned in this Part 2-8, that subclause is applicable as far as
reasonable. Where this standard states "addition", "modification" or "replacement", the
relevant requirements, test specifications or explanatory matter in IEC 60704-1:2010 should
be adapted accordingly.
Subclauses, tables and figures that are numbered starting from 101 are additional to those in
IEC 60704-1:2010.
Unless notes are in a new subclause or involve notes in IEC 60704-1:2010, they are
numbered starting from 101, including those in a replaced clause or subclause.
Additional annexes are lettered AA, BB, etc.
A list of all parts in the IEC 60704 series, published under the general title Household and
similar electrical appliances – Test code for the determination of airborne acoustical noise,
can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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.
– 6 – IEC 60704-2-8:2020 RLV © IEC 2020
INTRODUCTION
The measuring conditions specified in this document provide for sufficient steadiness in the
noise emitted and reproducibility in different laboratories, whilst simulating as far as possible
the practical use of shavers, hair clippers or trimmers.
It is recommended to consider noise data as part of performance data.
It is recommended to consider the determination of noise levels as part of a comprehensive
testing procedure covering many aspects of the properties and performance of shavers, hair
clippers or trimmers.
NOTE As stated in the Introduction to IEC 60704-1:2010, this test code is concerned with airborne noise only.
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF
AIRBORNE ACOUSTICAL NOISE –
Part 2-8: Particular requirements for electric shavers,
hair clippers or trimmers
1 Scope and object
This clause of IEC 60704-1:2010 is applicable except as follows:
1.1 Scope
1.1.1 General
Replacement:
This document applies to electric shavers, hair clippers or trimmers for domestic and similar
use, supplied from mains or secondary batteries or primary batteries.
The term "similar use" is understood to mean the use in hotels, hospitals, shops, offices, etc.
NOTE 101 This document does not apply to shavers, hair clippers or trimmers that are powered by means other
than electrical means, for example by a spring-device.
NOTE 102 If possible, this document can also be applied to analogous electrically operating operated devices,
such as hair clippers and depilating devices.
1.1.2 Types of noise
Replacement:
The methods specified in ISO 3743-1, ISO 3743-2 and ISO 3744 can be used for measuring
noise emitted by shave
...
IEC 60704-2-8 ®
Edition 2.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
Appareils électrodomestiques et analogues – Code d'essai pour la détermination
du bruit aérien –
Partie 2-8: Exigences particulières pour les rasoirs et les tondeuses à barbe
ou à cheveux électriques
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
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
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CH-1211 Geneva 20 www.iec.ch
Switzerland
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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 60704-2-8 ®
Edition 2.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Household and similar electrical appliances – Test code for the determination of
airborne acoustical noise –
Part 2-8: Particular requirements for electric shavers, hair clippers or trimmers
Appareils électrodomestiques et analogues – Code d'essai pour la
détermination du bruit aérien –
Partie 2-8: Exigences particulières pour les rasoirs et les tondeuses à barbe
ou à cheveux électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.140.20; 97.170 ISBN 978-2-8322-7908-3
– 2 – IEC 60704-2-8:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope and object . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Measurement methods and acoustical environments . 8
5 Instrumentation . 8
6 Operation and location of appliances under test . 8
7 Measurement of sound pressure levels . 12
8 Calculation of sound pressure and sound power levels . 13
9 Information to be recorded . 13
10 Information to be reported . 13
Annexes . 14
Annex B (normative) Test enclosure . 14
Bibliography . 15
Figure 101 – Isometric position views of the shaver, hair clipper or trimmer . 12
Table 101 – Standard deviations of sound power levels . 7
Table 102 – Standard deviations for declaration and verification . 7
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
TEST CODE FOR THE DETERMINATION OF
AIRBORNE ACOUSTICAL NOISE –
Part 2-8: Particular requirements for electric shavers,
hair clippers or trimmers
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.
International Standard IEC 60704-2-8 has been prepared by subcommittee 59L: Small
household appliances, of IEC technical committee 59: Performance of household and similar
electrical appliances.
This second edition cancels and replaces the first edition published in 1997. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the scope of the products has been enlarged to include hair clippers and trimmers;
b) it includes standard deviations of sound power levels in 1.1.3;
c) the normative references have been updated (ISO 3744:2010 and ISO 3743-1:2010);
– 4 – IEC 60704-2-8:2020 © IEC 2020
d) it is adjusted with respect to IEC 60704-1:2010;
e) it has been updated to comply with the ISO/IEC Directives, Part 2.
The text of this standard is based on the following documents:
FDIS Report on voting
59L/176/FDIS 59L/177/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This Part 2-8 is intended to be used in conjunction with third edition (2010) of IEC 60704-1,
Household and similar electrical appliances – Test code for the determination of airborne
acoustical noise – Part 1: General requirements.
The relevant text of IEC 60704-1:2010 as amended by this standard establishes the test code
for shavers, hair clippers or trimmers.
This Part 2-8 supplements or modifies the corresponding clauses in IEC 60704-1:2010, so as
to establish the test code for shavers, hair clippers or trimmers. When a particular subclause
of IEC 60704-1:2010 is not mentioned in this Part 2-8, that subclause is applicable as far as
reasonable. Where this standard states "addition", "modification" or "replacement", the
relevant requirements, test specifications or explanatory matter in IEC 60704-1:2010 should
be adapted accordingly.
Subclauses, tables and figures that are numbered starting from 101 are additional to those in
IEC 60704-1:2010.
Unless notes are in a new subclause or involve notes in IEC 60704-1:2010, they are
numbered starting from 101, including those in a replaced clause or subclause.
Additional annexes are lettered AA, BB, etc.
A list of all parts in the IEC 60704 series, published under the general title Household and
similar electrical applia
...
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