IEC 60335-2-28:2021

IEC 60335-2-28 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-28: Particular requirements for sewing machines

Appareils électrodomestiques et analogues – Sécurité –
Partie 2-28: Exigences particulières pour les machines à coudre

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IEC 60335-2-28 ®
Edition 5.0 2021-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –

Part 2-28: Particular requirements for sewing machines

Appareils électrodomestiques et analogues – Sécurité –

Partie 2-28: Exigences particulières pour les machines à coudre

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 13.120; 61.080; 97.180 ISBN 978-2-8322-1044-5

– 2 – IEC 60335-2-28:2021 © IEC 2021
CONTENTS
FOREWORD . 4
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 9
4 General requirement . 9
5 General conditions for the tests . 9
6 Classification . 9
7 Marking and instructions . 10
8 Protection against access to live parts . 11
9 Starting of motor-operated appliances . 11
10 Power input and current . 11
11 Heating . 11
12 Charging of metal-ion batteries . 12
13 Leakage current and electric strength at operating temperature . 12
14 Transient overvoltages . 12
15 Moisture resistance . 12
16 Leakage current and electric strength . 12
17 Overload protection of transformers and associated circuits . 12
18 Endurance . 13
19 Abnormal operation . 13
20 Stability and mechanical hazards . 13
21 Mechanical strength . 13
22 Construction . 13
23 Internal wiring . 14
24 Components . 14
25 Supply connection and external flexible cords . 14
26 Terminals for external conductors . 14
27 Provision for earthing . 14
28 Screws and connections . 14
29 Clearances, creepage distances and solid insulation . 14
30 Resistance to heat and fire . 14
31 Resistance to rusting . 15
32 Radiation, toxicity and similar hazards . 15
Annexes . 16
Annex B (normative) Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances . 17
Bibliography . 18

Figure 101 – Probe for measuring surface temperatures . 15

Table 101 – Maximum temperature rises for specified external surfaces under normal
operating conditions . 12

– 4 – IEC 60335-2-28:2021 © IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-28: Particular requirements for sewing machines

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.
IEC 60335-2-28 has been prepared by IEC technical committee 61: Safety of household and
similar electrical appliances. It is an International Standard.
This fifth edition cancels and replaces the fourth edition published in 2002 and
Amendment 1:2008. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the text has been aligned with IEC 60335-1:2020;
b) some notes have been converted to normative text (Clause 1, 11.7, 22.14, 22.101);
c) clarification of requirements for battery-operated appliances (Clause 1, 3.1.9, 11.7, B.11.1);
d) introduction of limits on the temperature rise of external accessible surfaces (Clause 11);
e) application of test probe 19 has been introduced (8.1.1, 20.2).

The text of this International Standard is based on the following documents:
Draft Report on voting
61/6380/FDIS 61/6430/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 60335 series, published under the general title Household and
similar electrical appliances – Safety, can be found on the IEC website.
This Part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments unless that edition precludes it; in that case, the latest edition that does not
preclude it is used. It was established on the basis of the sixth edition (2020) of that standard.
NOTE 1 When "Part 1" is mentioned in this standard, it refers to IEC 60335-1.
This Part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to convert
that publication into the IEC standard: Particular requirements for sewing machines.
When a particular subclause of Part 1 is not mentioned in this Part 2, that subclause applies as
far as is reasonable. When this standard states "addition", "modification" or "replacement", the
relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
notes: in small roman type.
–
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under 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.
– 6 – IEC 60335-2-28:2021 © IEC 2021
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of this publication be adopted for implementation nationally
not earlier than 12 months or later than 36 months from the date of publication.

INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
Guidance documents concerning the application of the safety requirements for appliances can
be accessed via TC 61 supporting documents on the IEC website
https://www.iec.ch/tc61/supportingdocuments
This information is given for the convenience of users of this International Standard and does
not constitute a replacement for the normative text in this standard.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in normal
use taking into account the manufacturer's instructions. It also covers abnormal situations that
can be expected in practice and takes into account the way in which electromagnetic
phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that there
is compatibility with the wiring rules when the appliance is connected to the supply mains.
However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another Part 2 of IEC 60335, the relevant Part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a Part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the Part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal publications, basic safety publications and group safety publications covering a hazard are not
applicable since they have been taken into consideration when developing the general and particular requirements
for the IEC 60335 series of standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of the
requirements and, if found to be substantially equivalent, may be considered to comply with the
standard.
NOTE 3 Standards dealing with non-safety aspects of household appliances are:
– IEC standards published by TC 59 concerning methods of measuring performance;
– CISPR 11, CISPR 14-1 and relevant IEC 61000-3 series standards concerning electromagnetic emissions;
– CISPR 14-2 concerning electromagnetic immunity;
– IEC standards published by TC 111 concerning environmental matters.

– 8 – IEC 60335-2-28:2021 © IEC 2021
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-28: Particular requirements for sewing machines

1 Scope
This clause of Part 1 is replaced by the following.
This part of IEC 60335 deals with the safety of electric sewing machines for household and
similar use, their rated voltage being not more than 250 V for single-phase appliances and
480 V for other appliances, including direct current (DC) supplied appliances and battery-
operated appliances.
Overlock machines and electrical sets are within the scope of this standard.
Appliances not intended for normal household use, but that nevertheless can be a source of
danger to the public, such as sewing machines intended to be used by laymen in shops and in
light industry, are within the scope of this standard.
As far as is practicable, this standard deals with the common hazards presented by appliances
that are encountered by all persons in and around the home. However, in general, it does not
take into account
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional
requirements can be necessary;
– in many countries additional requirements are specified by the national health authorities,
the national authorities responsible for the protection of labour and similar authorities.
This standard does not apply to
– appliances intended exclusively for industrial purposes;
– appliances intended to be used in locations where special conditions prevail, such as the
presence of a corrosive or explosive atmosphere (dust, vapour or gas).
2 Normative references
This clause of Part 1 is applicable except as follows.
Addition:
IEC 60320-2-1, Appliance couplers for household and similar general purposes – Part 2-1:
Sewing machine couplers
IEC 60584-1, Thermocouples – Part 1: EMF specifications and tolerances
3 Terms and definitions
This clause of Part 1 is applicable except as follows.
3.1 Definitions relating to physical characteristics
3.1.9 Addition:
operation of the appliance under the following conditions:
The appliance is operated without thread and fabric, the presser foot being in its lifted position
and the spool-winding device disengaged. The stitch length and zigzag stitch width are adjusted
so that the highest load is obtained.
Note 1 to entry: The highest load is normally obtained with the stitch length and zigzag stitch width adjusted to their
maximum values.
3.5 Definitions relating to types of appliances
3.5.101
electrical set
assembly comprising a motor and its control for mounting on a non-electric sewing machine
Note 1 to entry: An electrical set may incorporate a lamp.
3.5.102
overlock machine
sewing machine having more than one needle and incorporating a means for trimming the
material
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.101 Electrical sets are mounted on the sewing machine specified in the instructions that
gives the most unfavourable results.
5.102 Sewing machines used on a table are tested as portable appliances.
6 Classification
This clause of Part 1 is applicable.

– 10 – IEC 60335-2-28:2021 © IEC 2021
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
7.1 Addition:
Appliances shall be marked on or near the lampholder with the maximum rated wattage of
replaceable lamps as follows:
lamp max….W
The word "lamp" may be replaced by symbol IEC 60417-5012 (2002-10).
The voltage rating of a lamp shall be marked if it is lower than the rated voltage of the
appliance.
7.10 Addition:
The requirement does not apply to switches controlling lamps.
7.11 Addition:
The requirement does not apply to motor controls.
7.12 Addition:
The instructions shall state the rated wattage of any lamp and its voltage rating if it is lower
than the rated voltage of the appliance.
The instructions shall state the substance of the following:
– switch off or unplug the appliance when leaving it unattended; and
– unplug the appliance before carrying out maintenance or replacing lamps.
7.12.1 Addition:
The instructions for electrical sets shall indicate the sewing machines for which they are
intended and shall state how they are to be installed.
7.101 Electrical sets shall be marked with:
– rated voltage in volts;
– rated current in amperes;
– name, trade mark or identification mark of the manufacturer or responsible vendor; and
– model or type reference.
Compliance is checked by inspection.

8 Protection against access to live parts
This clause of Part 1 is applicable except as follows.
8.1.1 Addition:
For foot pedals and other parts of appliances that are situated on the floor in normal use, in
addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied as specified for
test probe 18.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable.
11 Heating
This clause of Part 1 is applicable except as follows.
11.3 Addition:
Where the external accessible surfaces are suitably flat and access permits, then the test
probe of Figure 101 is used to measure the temperature rises of external accessible surfaces
specified in Table 101. The probe is applied with a force of 4 N ± 1 N to the surface in such a
way that the best possible contact between the probe and the surface is ensured. The
measurement is performed after a contact period of 30 s.
The probe may be held in place using a laboratory stand clamp or similar device. Any measuring
instrument giving the same results as the probe may be used.
11.7 Modification:
The appliance is operated until steady conditions are established by actuating the motor control
in cycles. Each cycle comprises
– 2,5 s operation from start to full speed;
– 5,0 s operation at full speed;
– 7,5 s at rest.
For appliances incorporating integral batteries or separable batteries not disconnected from
the appliance for charging purposes:
– the battery that has been fully discharged is charged for 1 h, while the appliance is
operated as specified, if allowed by the construction of the appliance;
– the battery that has been fully discharged is charged, for a duration of 24 h or until it is
fully charged whichever is shorter, without the battery-operated appliance performing its
intended function.
11.8 Modification:
During the test, the temperature rises are monitored continuously and shall not exceed the
values shown in Table 3 and Table 101.

– 12 – IEC 60335-2-28:2021 © IEC 2021
Addition:
The temperature rise of the actuating member of a motor control shall not exceed the value
specified in Table 3 for surfaces of handles, knobs, grips and similar parts which are held for
short periods only in normal use.
Table 101 – Maximum temperature rises for specified external
surfaces under normal operating conditions
a
Surface
Temperature rise of external accessible surfaces
K
Bare metal 42
b
Coated metal 49
Glass and ceramic 56
c, d
Plastic and plastic coating > 0,4 mm 62
NOTE The temperature rise limits of knobs, grips, keyboards, keypads and similar parts are specified in Table 3.
a
Temperature rises are not measured on surfaces that are inaccessible to a 75 mm diameter probe having a
hemispherical end, applied with a force not exceeding 1 N.
b
Metal is considered coated when a coating having a minimum thickness of 90 µm made of enamel or a non-
substantially plastic coating is used.
c
The temperature rise limit applies also for plastic material having a metal finish of thickness less than
0,1 mm.
d
When the thickness of plastic coating does not exceed 0,4 mm, the temperature rise limits of coated metal or
glass and ceramic apply.
12 Charging of metal-ion batteries
This clause of Part 1 is applicable.
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable.
16 Leakage current and electric strength
This clause of Part 1 is applicable.
17 Overload protection of transformers and associated circuits
This clause of Part 1 is applicable.

18 Endurance
This clause of Part 1 is not applicable.
19 Abnormal operation
This clause of Part 1 is applicable except as follows.
19.7 Modification:
Stalled conditions are obtained by locking the rotor, the appliance being operated for 15 s.
19.9 Not applicable
20 Stability and mechanical hazards
This clause of Part 1 is applicable except as follows.
20.2 Addition:
The requirement concerning moving parts of appliances does not apply to moving parts, such
as needles, needle bars, spool winding devices and take-up levers, which are accessible for
the operation and maintenance of the sewing machine.
Spokes of wheels, cutting blades of overlock machines and the point where a transmission
belt first contacts the hand-wheel shall be adequately guarded.
For foot pedals and other parts of appliances that are situated on the floor in normal use, in
addition to the use of test probe 18, test probe 19 of IEC 61032 is also applied as specified for
test probe 18.
21 Mechanical strength
This clause of Part 1 is applicable.
22 Construction
This clause of Part 1 is applicable except as follows.
22.14 Addition:
The risk of injury while feeding material under the presser foot during straight stitch and zigzag
sewing shall be taken into account. An upward bend of the toe of the pressure foot by at least
6 mm or a wire guard is considered to comply.
This requirement does not apply to presser feet and attachments for particular purposes such
as sewing buttonholes. It also does not apply to moving parts, such as needles, needle bars,
spool winding devices and take-up levers, which are accessible for the operation and
maintenance of the sewing machine.

– 14 – IEC 60335-2-28:2021 © IEC 2021
22.101 Lamps having a voltage rating lower than the rated voltage of the appliance shall be
supplied through an isolating transformer.
Compliance is checked by inspection.
23 Internal wiring
This clause of Part 1 is applicable.
24 Components
This clause of Part 1 is applicable except as follows.
24.1.5 Addition:
The relevant standard for appliance couplers used for the connection of motor controls is
IEC 60320-2-1.
25 Supply connection and external flexible cords
This clause of Part 1 is applicable except as follows.
25.5 Addition:
Type Z attachment is allowed for motor controls and appliance connectors.
25.7 Addition:
Light polyvinyl chloride sheathed cords (code designation 60227 IEC 52) may be used
regardless of the mass of the appliance.
26 Terminals for external conductors
This clause of Part 1 is applicable.
27 Provision for earthing
This clause of Part 1 is applicable.
28 Screws and connections
This clause of Part 1 is applicable.
29 Clearances, creepage distances and solid insulation
This clause of Part 1 is applicable.
30 Resistance to heat and fire
This clause of Part 1 is applicable except as follows.

30.2 Modification:
Replace the two dashed items in the compliance criteria with the following:
– for sewing machines, 30.2.2 is applicable.
31 Resistance to rusting
This clause of Part 1 is applicable.
32 Radiation, toxicity and similar hazards
This clause of Part 1 is applicable.

Key
A adhesive
B thermocouple wires 0,3 mm diameter to IEC 60584-1 Type K
C handle arrangement permitting a contact force of 4 N ± 1 N
D polycarbonate tube: inside diameter 3 mm, outside diameter 5 mm
E tinned copper disc: 5 mm diameter, 0,5 mm thick with flat contact face
Figure 101 – Probe for measuring surface temperatures

– 16 – IEC 60335-2-28:2021 © IEC 2021
Annexes
The annexes of Part 1 are applicable except as follows.

Annex B
(normative)
Battery-operated appliances, separable batteries and detachable
batteries for battery-operated appliances
Annex B of Part 1 is applicable except as follows.
11 Heating
B.11.1 Modification:
Battery-operated appliances are tested under the conditions of normal operation with the
appliance operating in cycles, where each cycle comprises
– 2,5 s operation from start to full speed;
– 5,0 s operation at full speed;
– 7,5 s at rest.
For appliances incorporating integral batteries or separable batteries not disconnected from
the appliance for charging purposes, and that cannot perform their intended function while the
batteries are being charged, the appliance is operated as specified until it cannot perform its
intended function due to the depletion of the batteries.
22 Construction
B.22.3 Addition:
For foot pedals and other parts of appliances that are situated on the floor in normal use, in
addition to test probe 18, test probe 19 of IEC 61032 is applied as specified for test probe 18.
B.22.4 Addition:
For foot pedals and other parts of appliances that are situated on the floor in normal use, in
addition to test probe 18, test probe 19 of IEC 61032 is applied as specified for test probe 18.

– 18 – IEC 60335-2-28:2021 © IEC 2021
Bibliography
The bibliography of Part 1 is applicable.

___________
– 20 – IEC 60335-2-28:2021 © IEC 2021
SOMMAIRE
AVANT-PROPOS . 22
INTRODUCTION . 25
1 Domaine d'application . 26
2 Références normatives . 26
3 Termes et définitions . 27
4 Exigences générales . 27
5 Conditions générales d'essais . 27
6 Classification . 27
7 Marquage et instructions . 28
8 Protection contre l'accès aux parties actives. 29
9 Démarrage des appareils à moteur . 29
10 Puissance et courant . 29
11 Echauffements. 29
12 Charge des batteries à ions métalliques . 30
13 Courant de fuite et rigidité diélectrique à la température de régime . 30
14 Surtensions transitoires . 30
15 Résistance à l'humidité . 30
16 Courant de fuite et rigidité diélectrique . 31
17 Protection contre la surcharge des transformateurs et des circuits associés . 31
18 Endurance . 31
19 Fonctionnement anormal . 31
20 Stabilité et dangers mécaniques . 31
21 Résistance mécanique . 31
22 Construction . 31
23 Conducteurs internes. 32
24 Composants . 32
25 Raccordement au réseau et câbles souples extérieurs . 32
26 Bornes pour conducteurs externes . 32
27 Dispositions en vue de la mise à la terre . 32
28 Vis et connexions . 33
29 Distances dans l'air, lignes de fuite et isolation solide. 33
30 Résistance à la chaleur et au feu . 33
31 Protection contre la rouille . 33
32 Rayonnement, toxicité et dangers analogues . 33
Annexes . 34
Annexe B (normative) Appareils alimentés par batteries, batteries séparables et
batteries amovibles pour appareils alimentés par batteries . 35
Bibliographie . 36

Figure 101 – Calibre pour le mesurage des températures de surface . 33

Tableau 101 – Echauffements maximaux pour les surfaces extérieures spécifiées en
conditions de fonctionnement normal . 30

– 22 – IEC 60335-2-28:2021 © IEC 2021
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
APPAREILS ÉLECTRODOMESTIQUES ET ANALOGUES –
SÉCURITÉ –
Partie 2-28: Exigences particulières pour les machines à coudre

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. A 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 technique de ses publications; l'IEC ne peut pas être tenue responsable de
l'éventuelle mauvaise utilisation ou interprétation qui en est faite par un quelconque utilisateur final.
4) Dans le but d'encourager l'uniformité internationale, les Comités nationaux de l'IEC s'engagent, dans toute la
mesure possible, à appliquer de façon transparente les Publications de l'IEC dans leurs publications nationales
et régionales. Toutes divergences entre toutes Publications de l'IEC et toutes publications nationales ou
régionales correspondantes doivent être indiquées en termes clairs dans ces dernières.
5) L'IEC elle-même ne fournit aucune attestation de conformité. Des organismes de certification indépendants
fournissent des services d'évaluation de conformité et, dans certains secteurs, accèdent aux marques de
conformité de l'IEC. L'IEC n'est responsable d'aucun des services effectués par les orga
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