IEC 62863:2017

IEC 62863 ®
Edition 1.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Method of measuring performances of electric hair clippers or trimmers for
household use
Méthode de mesure de l'aptitude a la fonction des tondeuses ou tondeuses de
finition pour usage domestique
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IEC 62863 ®
Edition 1.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Method of measuring performances of electric hair clippers or trimmers for

household use
Méthode de mesure de l'aptitude a la fonction des tondeuses ou tondeuses de

finition pour usage domestique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 97.170 ISBN 978-2-8322-6201-6

– 2 – IEC 62863:2017 © IEC 2017
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 General conditions for the tests . 6
4.1 General . 6
4.2 Pre-conditioning . 7
4.3 Battery condition . 7
4.4 Test environment . 7
4.5 Limits of voltage variation . 7
4.6 Test voltage . 7
4.7 Test frequency . 7
4.8 Test electrical supply system . 7
5 Testing procedures . 7
5.1 General . 7
5.2 Preconditioning run . 7
5.3 Test condition for no-load operation . 8
5.4 Measurement of supply cord length . 8
5.5 Starting ability test . 8
5.6 Ability-to-cut test . 8
5.7 Test of airborne acoustical noise. 10
5.8 Test of reliability of the mechanical /electrical connection between the
adapter and the cord/cordless rechargeable hair clipper or trimmer . 10
5.9 Determination of the working minutes of a rechargeable hair clipper or
trimmer after full charging . 11
5.10 Determination of energy consumption of battery-operated hair clipper or
trimmer . 11
5.11 Endurance test . 11
6 Records of test information and test result . 12
6.1 Product details . 12
6.2 Test parameters . 12
6.3 Measured data . 12
6.4 Test and laboratory details . 13
Annex A (informative) Supplier information of hair strip . 14
Annex B (informative) Positioning of the hair clipper or trimmer under test . 15
Bibliography . 16

Figure 1 – Sketch for the stationary blade tooth plane . 6
Figure 2 – Measurement of supply cord length . 8
Figure 3 – Stationary blade tooth plane parallel to the hair strip surface . 9
Figure 4 – Hair strip width . 9
Figure 5 – Distribution of hairs on the hair strip . 10
Figure 6 – Orientation and length of hair . 10
Figure 7 – Electrical connection diagram. 11
Figure B.1 – Positioning of the hair clipper or trimmer under test . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
METHOD OF MEASURING PERFORMANCES OF ELECTRIC
HAIR CLIPPERS OR TRIMMERS FOR HOUSEHOLD USE

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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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.
International Standard IEC 62863 has been prepared by subcommittee 59L: Small household
appliances, of IEC technical committee 59: Performance of household and similar electrical
appliances.
This bilingual version (2018-11) corresponds to the monolingual English version, published in
2017-08.
The text of this standard is based on the following documents:
FDIS Report on voting
59L/144/FDIS 59L/146/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.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – IEC 62863:2017 © IEC 2017
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.
METHOD OF MEASURING PERFORMANCES OF ELECTRIC
HAIR CLIPPERS OR TRIMMERS FOR HOUSEHOLD USE

1 Scope
This document applies to reciprocating electric hair clippers or trimmers for household use.
This document deals with the methods of measuring performances of electric hair clippers or
trimmers for household use with a rated voltage not greater than 250V.
This document does not specify safety or performance requirements.
This document does not apply to professional hair clippers or trimmers, animal shearers and
animal clippers, or shavers. For shavers, refer to IEC 61254.
NOTE This document does not cover safety requirements (see IEC 60335-2-8).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60704-2-8, Household and similar electrical appliances – Test code for the determination
of airborne acoustical noise – Part 2: Particular requirements for electric shavers
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardisation 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
clipper
trimmer
appliance that is designed to cut hair that consists of a motor, drive system, fixed blade
containing teeth and a moving blade containing teeth moving in a reciprocating motion
intended for clipping/trimming, not shaving
Note 1 to entry: Depending on the specific function, clippers are also called trimmers.
3.2
battery-operated hair clipper
battery-operated hair trimmer
hair clipper or trimmer deriving its energy solely from primary batteries or secondary batteries
and not designed for connection to the mains supply or a charger, or from the battery packs
that are supplied by manufacturers together with the hair clipper or trimmer
Note 1 to entry: If the manufacturer supplies a specific charger and rechargeable batteries with the clipper or
trimmer, the combined device is considered as a rechargeable hair clipper or trimmer when performance is
measured.
– 6 – IEC 62863:2017 © IEC 2017
3.3
rechargeable hair clipper
rechargeable hair trimmer
hair clipper or trimmer powered by rechargeable batteries or battery packs that are recharged
in the hair clipper or trimmer
Note 1 to entry: There are two types, cordless rechargeable hair clipper or trimmer and cord/cordless
rechargeable hair clipper or trimmer.
3.4
cordless rechargeable hair clipper
cordless rechargeable hair trimmer
rechargeable hair clipper or trimmer that is not intended to run while connected to the mains
supply or a charger
3.5
cord/cordless rechargeable hair clipper
cord/cordless rechargeable hair trimmer
cordless rechargeable hair clipper or trimmer that can be operated while connected to the
mains supply with discharged batteries
3.6
corded hair clipper
corded hair trimmer
hair clipper or trimmer without batteries or battery packs, that can operate only while
connected to the mains supply
3.7
cool state
state in which one hour passes after the outside of the device has fallen to ambient
temperature
3.8
stationary blade tooth plane
SEE: Figure 1.
Housing
Moving blade
Stationary blade
Tooth plane
IEC
Figure 1 – Sketch for the stationary blade tooth plane
3.9
soft surface
surface that prevents the device from moving while running and should have limited impact on
the temperature of the device
4 General conditions for the tests
4.1 General
Unless otherwise specified, the tests are carried out in accordance with Subclauses 4.1 to 4.8.

Unless otherwise specified, the tests are carried out when the controller of the hair clipper or
trimmer is set to the highest setting.
4.2 Pre-conditioning
For rechargeable hair clippers, preconditioning shall be carried out according to 5.2.1 before
performing the tests specified in this document.
For hair clippers or trimmers other than rechargeable types, a preconditioning run shall be
carried out according to 5.2.2 before performing the tests specified in this document.
4.3 Battery condition
For battery-operated hair clippers or trimmers, new batteries shall be used, unless otherwise
specified.
For rechargeable hair clippers or trimmers, the battery shall be fully charged before each test
according to the manufacturer’s instructions.
4.4 Test environment
The tests are carried out in draft-free indoor environment at an ambient temperature of
(23 ± 2) °C.
4.5 Limits of voltage variation
During the test, the variation in the voltage shall not exceed ± 1 % of the test voltage.
4.6 Test voltage
Unless otherwise specified, the tests are carried out at a specific voltage within a voltage
range (e.g. 100 V to 240 V) or at the rated voltage or voltages (e.g. 120 V, or 120 V and
240 V).
4.7 Test frequency
Hair clippers or trimmers are tested at the rated frequency or within a rated frequency range
(e.g. rated as 50 Hz and 60 Hz, or 50 Hz to 60 Hz).
4.8 Test electrical supply system
Total harmonic distortion of the test electrical supply system shall be less than 5 %.
5 Testing procedures
5.1 General
Oil the cutting system according to the instructions for use before each test, unless otherwise
specified. During the oiling, the clipper blades shall be in a horizontal position.
5.2 Preconditioning run
5.2.1 For rechargeable hair clipper or trimmers, the following preconditioning run is
required.
a) Fully charge the device according to its instructions for use.
b) Let the device reach the cool state.
c) Oil the cutting system according to its instructions for use.
d) Lay the device horizontally on a soft surface with the teeth of the cutting element pointing
upwards.
e) Continuously run (discharge) the device under no-load test condition until it stops.
f) Let the device reach the cool state.
g) Repeat the procedures a) to f) three times.
5.2.2 For hair clippers or trimmers other than rechargeable type, the following
preconditioning run is required.

– 8 – IEC 62863:2017 © IEC 2017
a) Oil the cutting system according to its instructions for use.
b) Lay the device horizontally on a soft surface with the teeth of the cutting element pointing
upwards.
c) Continuously run the device under no-load test conditions for 20 min.
d) Let the device reach the cool state.
5.3 Test condition for no-load operation
Lay the device horizontally on a soft surface with the teeth of the cutting element pointing
upwards and without any load on the cutters. If possible, there shall be no combs attached.
The device shall operate in normal mode (e.g. no turbo) with only the main cutting system in
operation.
The cutting head mounted during the tests shall be recorded.
5.4 Measurement of supply cord length
The length of the supply cord is measured between the point where the cord or the cord
sheath enters into the enclosure and the entry to the plug (see Figure 2). The cord is
stretched to its full length. For coiled cords, a 10 N force is applied to stretch.
Clipper
Total length of cord
IEC
Figure 2 – Measurement of supply cord length
5.5 Starting ability test
Oil the cutting system of the corded hair clipper or trimmer according to the instructions for
use. The corded hair clipper or trimmer is started three times at 0,9 times the rated voltage.
The hair clipper or trimmer shall come to a complete stop before it is restarted. The outcome
of starting for each time shall be recorded.
For battery-operated hair clippers or trimmers and rechargeable hair clippers or trimmers, the
starting ability test is not carried out.
5.6 Ability-to-cut test
All attachments are removed.
The clipper is fed into a specified hair strip with the stationary blade tooth plane being less
than 5 mm from, and parallel to, the hair strip surface (see Figure 3) at a maximum uniform
stroke speed so that 100 % of the hair across the blade's cutting width is cut. Try to find the
fastest time where the clipper is still able to cut 100 %.

Housing
A
Moving blade
Stationary blade
Tooth plane
IEC
Key
A: direction of trimmer/clipper movement
Figure 3 – Stationary blade tooth plane parallel to the hair strip surface
At least 2 units are tested and at least 3 cutting times are measured for each unit. The time to
cut the hair strip in seconds for each test is recorded.
The cutting distance is 20 cm (from the start point to the end point). In addition, 5 cm of blank
distance is reserved on the hair strip to facilitate the cutting operation (see Figure 5).
The cutting width of the blade is shown in Figure 4 where
B = A + (≥2 cm)
Strip width (B)
≥ 1 cm Blade cutting width (A) ≥ 1 cm
IEC
Key
A: blade width
B: strip width
Figure 4 – Hair strip width
The hair strip width is equal to B with the following characteristics:
– a hair stitch density of approximately 25 stitches/cm and approximately (15 ± 3) hairs per
stitch (see Figure 5);
– a hair orientation angle of approximately 45° to 65° (angle α in Figure 6).
The length of the hair is approximately 20 mm.
The material of the strip hair can be artificial and the hair diameter is 70 µm to 110 µm.

– 10 – IEC 62863:2017 © IEC 2017
Strip width B
Ending point
Starting point
IEC
Key
L: hair strip length = 25 cm
Cutting length = 20 cm
Blank distance = 5 cm
Figure 5 – Distribution of hairs on the hair strip
Artificial hair
≈ 20 mm
65°
≈
45°
IEC
Figure 6 – Orientation and length of hair
5.7 Test of airborne acoustical noise
The test shall be carried out according to IEC 60704-2-8:1997.
NOTE The test set up is shown in Annex B.
The result of A-weighted sound power level is recorded.
5.8 Test of reliability of the mechanical /electrical connection between the adapter
and the cord/cordless rechargeable hair clipper or trimmer
The axis of both the pin of the adapter and the socket of the clipper or trimmer are kept in a
horizontal position and aligned with each other. The pin is inserted into the socket of the
clipper or trimmer and then the plug is pulled out of the socket with the maximum pull force
being measured and recorded. Then the pin is inserted into and pulled out of the socket of the
clipper or trimmer with the charger plugged into the supply mains. One cycle includes one
insertion and one extraction. Care should be taken not to pull on the cord.
The test is repeated and the pull force and the electrical connection shall be checked and
recorded at intervals of 60 cycles. The electrical connection is checked by observing the
Blank Cutting length
5 cm 20 cm
Hair strip length (L)
25 cm
charging indicator, or the current/power meter if no charging indicator is present
(see Figure 7). When checking the electrical connection while charging, the cord is positioned
at multiple angles to verify no intermittent connection. The device shall not be switched on
during the test.
When 600 cycles are reached, the test is terminated.
Mains A/W
IEC
Figure 7 – Electrical connection diagram
5.9 Determination of the working minutes of a rechargeable hair clipper or trimmer
after full charging
Fully charge the device according to the instructions for use. Oil the cutting unit according to
the instructions for use. When it is fully charged, the hair clipper or trimmer shall be
disconnected from the power supply. Let the device rest and the rest period shall be at least 1
h and not exceed 24h.
Run the device according to the no-load test condition specified in 5.3 for 10 min. Switch off
the device for 10 min. Repeat these on-off cycles until it stops (r/min is zero). The
accumulated working minutes of the device are recorded.
5.10 Determination of energy consumption of battery-operated hair clipper or trimmer
The battery-operated hair clipper or trimmer is supplied from a DC supply with the voltage
equal to the battery’s rated voltage as specified in the instructions for use. Run the device
according to the no-load test condition specified in 5.3 for 1 min. Then start to measure the
total energy consumption for 10 min. The obtained energy consumption (W·h) is recorded.
5.11 Endurance test
5.11.1 The corded hair clipper or trimmer is supplied with the rated voltage and is operated
according to the no-load test condition specified in 5.3 for 10 min, then stopped and rested for
10 min. This cycle is repeated until the unit fails to operate or the predetermined accumulated
working hours are reached, whichever is shorter. During this period the ability-to-cut test
specified in 5.6 is performed and the ability-to-cut test intervals are done as follows:
– Ability-to-cut test is carried out once every 12 h for accumulated working time not
exceeding 36 h;
– Ability-to-cut test is carried out once every 48 h for accumulated working time
exceeding 36 h.
The total accumulated working hours are recorded, along with the times for the ability-to-cut
test. Failure mode is also recorded.
The predetermined working hours may be agreed between the manufacturer or the client and
the laboratory before the endurance test.
During the test, the hair clipper or trimmer shall be lubricated once per 12 h of accumulated
working time and before the ability-to-cut test.
5.11.2 The rechargeable hair clipper or trimmer is fully charged at the rated frequency and
the rated voltage and in accordance with the requirements in the instructions for use. The hair
clipper or trimmer is operated according to the no-load test condition specified in 5.3 for
10 min, then stopped and rested for 10 min. The hair clipper or trimmer shall be disconnected
from the charger during operation. When the battery becomes empty, it shall be recharged
according to the manufacturer’s instructions for use. This cycle is repeated until the unit
(including the charger) fails to operate or the predetermined accumulated working hours are
reached, whichever is shorter. During this period, the ability-to-cut test specified in 5.6 is
performed and the ability-to-cut test intervals are done as follows:

– 12 – IEC 62863:2017 © IEC 2017
– Ability-to-cut test is carried out once every 12 h for accumulated working time not
exceeding 36 h;
– Ability-to-cut test is carried out once every 48 h for accumulated working time
exceeding 36 h.
The total accumulated working hours are recorded, along with the times for the ability-to-cut
test. The failure mode is also recorded.
The predetermined working hours may be agreed between the manufacturer or the client and
the laboratory before the endurance test.
During the test, the hair clipper or trimmer shall be lubricated once per 12 h of accumulated
working time and before the ability-to-cut test.
5.11.3 For battery-operated hair clippers or trimmers, use an equivalent DC supply with the
voltage equal to the battery’s rated voltage as specified in the instructions for use. The device
is operated according to the no-load test condition specified in 5.3 for 10 min, then stopped
and rested for 10 min. This cycle is repeated until the unit fails to operate or the
predetermined accumulated working hours are reached, whichever is shorter. During this
period, the ability-to-cut test specified in 5.6 is performed and the ability-to-cut test intervals
are done as follows:
– Ability-to-cut test is carried out once every 12 h for accumulated working time not
exceeding 36 h;
– Ability-to-cut test is carried out once every 48 h for accumulated working time
exceeding 36 h.
The total accumulated working hours are recorded, along with the times for the ability-to-cut
test. The failure mode is also recorded.
The predetermined working hours may be agreed between the manufacturer or the client and
the laboratory before the endurance test.
During the test, the hair clipper or trimmer shall be lubricated once per 12 h of accumulated
working time and before the ability-to-cut test.
6 Records of test information and test result
6.1 Product details
The following information shall be recorded in the test report:
– brand, model, type, and serial number or date code;
– product description, as appropriate;
– rated voltage(s) and frequency/frequencies.
In the case of products with multiple functions or with options to include additional models or
attachments, the configuration of the product tested shall be noted in the report.
6.2 Test parameters
The following values shall be achieved and recorded during the test. If the values change
during the test, the minimum and maximum values shall be recorded:
– ambient temperature (°C);
– test voltage(s) (V) and frequency (frequencies) (Hz);
– total harmonic distortion of the electricity supply system;
– information and documentation on the instrumentation, setup and circuits used for
electrical testing.
6.3 Measured data
The following information shall be recorded in the test report:

– 5.4, measured cord length (m);
– 5.5, the outcome of starting for each of three times (started/not started);
– 5.6, ability-to-cut test (time to cut the hair strip in seconds);
– 5.7, A-weighted sound power level (dB(A));
– 5.8, test of reliability of the mechanical/electrical connection between adapter and
cord/cordless rechargeable hair clipper or trimmer:
• measured pull forces (N) and the electrical connection functionality (yes/no) at the
intervals.
– 5.9, the accumulated working minutes (min);
– 5.10, determination of energy consumption of battery-operated hair clipper or trimmer:
• electricity consumption for 10 min operation (Wh).
– 5.11, endurance test:
• total accumulated working hours (h) and the result of the cutting ability results at
the given intervals (s);
• failure mode.
6.4 Test and laboratory details
The following information shall be recorded in the test report:
– test report number/reference;
– date of test;
– laboratory name and address;
– test officer(s).
– 14 – IEC 62863:2017 © IEC 2017
Annex A
(informative)
Supplier information of hair strip
A suitable strip of hair specified for the tests in this document can be obtained from the
following supplier:
Supplier name: ZheJiang Paiter Electric Co., LTD
Address: No. 33, Hongxiang Road, National High-tech Industrial Park, Ouhai District,
Wenzhou, Zhejiang Province, China.

_____________
The hair strip provided by ZheJiang Paiter Electric Co.,LTD is an example of a suitable product for carrying out
the tests described in this document. This information is given for the convenience of users of this document
and does not constitute an endorsement by IEC of the product named. Equivalent products may be used if they
can be shown to lead to the same results.

Annex B
(informative)
Positioning of the hair clipper or trimmer under test
The clipper or trimmer is positioned as follows: the clipper or trimmer is rested on the
horizontal plane with the teeth of the cutting element pointing upwards and then raised up so
the tips of the blade teeth are 25 cm from the floor, see Figure B.1.
Tooth plane
Stationary blade
Floor
IEC
Figure B.1 – Positioning of the hair clipper or trimmer under test

25 cm
Raised up
– 16 – IEC 62863:2017 © IEC 2017
Bibliography
IEC 60335-2-8, Household and similar electrical appliances – Safety – Part 2-8: Particular
requirements for shavers, hair clippers and similar appliances
IEC 61254, Electric shavers for household use – Methods for measuring the performance

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– 18 – IEC 62863:2017 © IEC 2017
SOMMAIRE
AVANT-PROPOS . 20
1 Domaine d’application . 22
2 Références normatives . 22
3 Termes et définitions . 22
4 Conditions générales pour les essais . 23
4.1 Généralités . 23
4.2 Conditionnement préalable . 24
4.3 État de la batterie . 24
4.4 Environnement d’essai . 24
4.5 Limites de variation de la tension . 24
4.6 Tension d’essai . 24
4.7 Fréquence d’essai. 24
4.8 Système d’alimentation électrique d’essai . 24
5 Procédures d’essai . 24
5.1 Généralités . 24
5.2 Session de conditionnement préalable . 24
5.3 Condition d’essai pour fonctionnement à vide . 25
5.4 Mesurage de la longueur du câble d’alimentation . 25
5.5 Essai de capacité de démarrage . 25
5.6 Essai de capacité de coupe . 25
5.7 Essai de bruit aérien . 27
5.8 Essai de fiabilité de la connexion mécanique/électrique entre l’adaptateur et
la tondeuse ou la tondeuse de finition rechargeable avec/sans fil . 27
5.9 Détermination des durées (en minutes) de service d’une tondeuse ou d’une
tondeuse de finition rechargeable après charge complète . 28
5.10 Détermination de la consommation d’énergie des tondeuses ou tondeuses
de finition alimentées par batteries . 28
5.11 Essai d’endurance . 28
6 Enregistrements des informations d’essai et résultat d’essai . 29
6.1 Informations détaillées du produit . 29
6.2 Paramètres d’essai . 30
6.3 Données mesurées . 30
6.4 Informations détaillées relatives à l’essai et au laboratoire . 30
Annexe A (informative) Informations relatives au fournisseur de bande de poils ou de
cheveux . 31
Annexe B (informative) Positionnement de la tondeuse ou de la tondeuse de finition
pendant l’essai . 32
Bibliographie . 33

Figure 1 – Représentation du plan de dent de lame fixe . 23
Figure 2 – Mesurage de la longueur du câble d’alimentation . 25
Figure 3 – Plan de dent de la lame fixe parallèle à la surface de la bande de poils ou
de cheveux . 26
Figure 4 – Largeur de la bande de poils ou de cheveux . 26
Figure 5 - Répartition des poils ou cheveux sur la bande . 27
Figure 6 – Orientation et longueur des poils ou des cheveux . 27

Figure 7 – Schéma de connexion électrique . 28
Figure B.1 – Positionnement de la tondeuse ou de la tondeuse de finition pendant
l’essai . 32

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COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
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MÉTHODE DE MESURE DE L'APTITUDE A LA FONCTION DES
TONDEUSES OU TONDEUSES DE FINITION POUR USAGE DOMESTIQUE

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (IEC) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de l’IEC). L’IEC a pour
objet de favoriser la coopération internationale pour toutes les questions de normalisation dans les domaines
de l'électricité et de l'électronique. À cet effet, l’IEC – entre autres activités – publie des Normes internationales,
des Spécifications techniques, des Rapports techniques, des Spécifications accessibles au public (PAS) et des
Guides (ci-après dénommés "Publication(s) de l’IEC"). Leur élaboration est confiée à des comités d'études, aux
travaux desquels tout Comité national intéressé par le sujet traité peut participer. Les organisations
internationales, gouvernementales et non gouvernementales, en liaison avec l’IEC, participent également aux
travaux. L’IEC collabore étroitement avec l'Organisation Internationale de Normalisation (ISO), selon des
conditions fixées par accord entre les deux organisations.
2) Les décisions ou accords officiels de l’IEC concernant les questions techniques représentent, dans la mesure
du possible, un accord international sur les sujets étudiés, étant donné que les Comités nationaux de l’IEC
intéressés sont représentés dans chaque comité d’études.
3) Les Publications de l’IEC se présentent sous la forme de recommandations internationales et sont agréées
comme telles par les Comités nationaux de l’IEC. Tous les efforts raisonnables sont entrepris afin que l’IEC
s'assure de l'exactitude du contenu tech
...