IEC 62648:2012

Graphical symbols for use on equipment - Guidelines for the inclusion of graphical symbols in IEC publications

IEC 62648:2012 provides guidelines to ensure that graphical symbols for use on equipment in IEC product publications are consistent with the requirements of horizontal standard IEC 60417, and ISO 7000. This document is intended to be used by any technical committees and subcommittees to develop graphical symbols for use on equipment for inclusion in their product publications. It has the status of a horizontal standard in accordance with IEC Guide 108.

Symboles graphiques utilisables sur le matériel - Lignes directrices pour l'introduction de symboles graphiques dans les publications de la CEI

La CEI 62648:2012 fournit des lignes directrices destinées à garantir que les symboles graphiques utilisables sur le matériel dans les publications de produits de la CEI sont conformes aux exigences de la norme horizontale CEI 60417, et de l'ISO 7000. Ce document est destiné à être utilisé par tout comité d'études et sous-comité pour élaborer des symboles graphiques utilisables sur le matériel à introduire dans des publications de produits. Elle a le statut de norme horizontale conformément au Guide IEC 108.

General Information

• Status: Published
• Publication Date: 13-Jun-2012
• ICS: 01.080.40 - Graphical symbols for use on electrical and electronics engineering drawings, diagrams, charts and in relevant technical product documentation
• Technical Committee: SC 3C - Graphical symbols for use on equipment
• Current Stage: DELPUB - Deleted Publication
• Start Date: 27-Sep-2022
• Completion Date: 29-Oct-2021

Relations

• Amended By: IEC 62648:2012/AMD1:2015 - Amendment 1 - Graphical symbols for use on equipment - Guidelines for the inclusion of graphical symbols in IEC publications
• Effective Date: 05-Sep-2023
• Revised: IEC 62648:2022 - Graphical symbols for use on equipment - Guidelines for the inclusion of graphical symbols in IEC publications
• Effective Date: 05-Sep-2023

Overview

IEC 62648:2012 is an international horizontal standard published by the International Electrotechnical Commission (IEC) that provides guidelines for the inclusion of graphical symbols in IEC publications related to electrical and electronic equipment. The standard ensures that graphical symbols used on equipment are consistent with the requirements of IEC 60417 and ISO 7000, two fundamental standards that register and define graphical symbols for equipment.

The primary purpose of IEC 62648 is to guide technical committees and subcommittees in the development and standardization of graphical symbols for their product publications. These guidelines help maintain coherence, legibility, and effective communication of information through graphical symbols, regardless of language barriers.

Key Topics

• Scope and Use
  IEC 62648 is intended for use by technical committees drafting IEC product publications to ensure graphical symbols conform to horizontal standards. It harmonizes symbol creation and application practices aligned with IEC Guide 108.

• Normative References
  The standard references key documents required for consistent symbol design and application:

  • IEC 60417 - Graphical symbols for use on equipment
  • IEC 80416 series - Basic principles for creation and application of graphical symbols
  • ISO 7000 - Graphical symbols index and synopsis
  • ISO 3864 and ISO 7010 - Safety colours, signs, and markings principles

• Guidelines for Symbol Creation and Inclusion
  IEC 62648 outlines principal procedures including:

  • Ensuring symbol coherency among various IEC product publications
  • Collaboration with Subcommittee 3C (SC 3C) responsible for standardized symbol maintenance
  • Step-by-step procedures (hard and soft) for developing and including new symbols in IEC publications
  • Recommendations for maintaining legibility and clear meaning, especially for symbol families used together

• Harmonization with Existing Standards
  The standard aligns symbol development with IEC 60417 and ISO 7000 for consistency and international recognition. It also follows the structured ISO/IEC directives and integrates safety symbols as per ISO standards.

Applications

IEC 62648 plays a crucial role across industries where electrical and electronic equipment employs graphical symbols for operational instructions, safety warnings, and functional identification. Common applications include:

• Technical Committees and Standard Developers
  Use the standard to create coherent, standardized graphical symbols that can be uniformly applied across international IEC product publications.

• Manufacturers of Electrical Equipment
  Ensure equipment symbols comply with international standards, improving user comprehension and regulatory acceptance worldwide.

• Safety and Maintenance Documentation
  Apply consistent symbols for safety signs and markings to reduce user error and enhance operational safety.

• Multilingual and International Contexts
  Facilitate cross-border equipment usage without language dependency through universally recognized graphical symbols.

Related Standards

IEC 62648 works in conjunction with several key IEC and ISO standards for graphical symbols and safety communication:

• IEC 60417 - Defines standardized graphical symbols for equipment, serving as the primary symbol database.
• IEC 80416 (Parts 1, 2, 3, and 4) - Covers principles for creation and application of graphical symbols, including form, arrows, and usage guidelines.
• ISO 7000 - Provides an index and synopsis of graphical symbols for equipment used globally.
• ISO 3864-1 & ISO 7010 - Define safety colours, signs, and design principles crucial for safety-related symbols on equipment.

By adhering to IEC 62648, organizations ensure their graphical symbols meet international expectations for clarity, safety, and effectiveness, supporting global standardization efforts in the electrotechnical domain.

Standards Content (Sample)

IEC 62648 ®
Edition 1.0 2012-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL STANDARD
NORME HORIZONTALE
Graphical symbols for use on equipment – Guidelines for the inclusion of
graphical symbols in IEC publications

Symboles graphiques utilisables sur le matériel – Lignes directrices pour
l’introduction de symboles graphiques dans les publications de la CEI

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IEC 62648 ®
Edition 1.0 2012-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL STANDARD
NORME HORIZONTALE
Graphical symbols for use on equipment – Guidelines for the inclusion of

graphical symbols in IEC publications

Symboles graphiques utilisables sur le matériel – Lignes directrices pour

l’introduction de symboles graphiques dans les publications de la CEI

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 01.080.40 ISBN 978-2-83220-097-1

– 2 – 62648  IEC:2012
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Basic requirement for graphical symbols for use on equipment to be included in
IEC publications . 9
5 Principal guidelines . 9
5.1 General . 9
5.2 Coherency of graphical symbols for use on equipment . 10
5.3 Procedures to develop product publications including graphical symbols for
use on equipment . 10
Annex A (normative) Hard and soft procedures . 11
Annex B (informative) Examples of applications of graphical symbols for use on
equipment . 13
Annex C (informative) IEC 60417 – Proposal form for new graphical symbols . 17
Bibliography . 19

Table A.1 – Step-by-step approach to the hard procedures . 11
Table B.1 – Examples of graphical symbols for use on equipment as safety symbols to
form safety signs . 14
Table B.2 – Example of safety related graphical symbol for use on equipment and
safety sign . 15
Table B.3 – Examples of negation of the meaning of graphical symbols for use on
equipment . 16

62648  IEC:2012 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT –
GUIDELINES FOR THE INCLUSION OF GRAPHICAL
SYMBOLS IN IEC PUBLICATIONS
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 62648 has been prepared by subcommittee 3C: Graphical symbols
for use on equipment, of IEC technical committee 3: Information structures, documentation
and graphical symbols.
It has the status of a horizontal standard in accordance with IEC Guide 108.
The text of this standard is based on the following documents:
FDIS Report on voting
3C/1778/FDIS 3C/1793/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 publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 62648  IEC:2012
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site 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.
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.
62648  IEC:2012 – 5 –
INTRODUCTION
A graphical symbol is defined as a visually perceptible figure with a particular meaning used
to transmit information independently of language. Graphical symbols are used on equipment
for a wide range of purposes. The understanding of such symbols can be improved by
consistent design. This is particularly important where families of symbols are used in one
location or on similar equipment. Good design also helps to maintain the legibility of graphical
symbols when they are reduced to small dimensions for application. Thus, there is a need for
those involved in technical works to collaborate with experts in SC 3C responsible for
developing and maintaining graphical symbols for use on equipment to be standardized in the
horizontal standard IEC 60417.
This international standard is intended for committees working on graphical symbols for use
on equipment to be included in their product publications. It provides them with guidelines on
how to create their own graphical symbols for use on equipment as well as on how to consult
SC 3C so that these symbols are also included in IEC 60417.
This international standard provides commonly agreeable procedures among SC 3C and other
committees developing product publications including graphical symbols for use on equipment
in accordance with IEC Guide 108.

– 6 – 62648  IEC:2012
GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT –
GUIDELINES FOR THE INCLUSION OF GRAPHICAL
SYMBOLS IN IEC PUBLICATIONS
1 Scope
This International Standard provides guidelines to ensure that graphical symbols for use on
equipment in IEC product publications are consistent with the requirements of horizontal
standard IEC 60417, and ISO 7000. This document is intended to be used by any technical
committees and subcommittees to develop graphical symbols for use on equipment for
inclusion in their product publications.
This document is based on and develops IEC Guide 108:2006, Clause 4.
For the creation of new graphical symbols for use on equipment, IEC 80416-1 and
ISO 80416-2 are used. For the application of standardized graphical symbols for use on
equipment, IEC 80416-3 and ISO 80416-4 are used.
This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal standards in the preparation of its publications. The contents of this horizontal
standard will not apply unless specifically referred to or included in the relevant publications.
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 60417, Graphical symbols for use on equipment
IEC 80416-1:2008, Basic principles for graphical symbols for use on equipment – Part 1:
Creation of graphical symbols for registration
IEC 80416-3:2002, Basic principles for graphical symbols for use on equipment – Part 3:
Guidelines for the application of graphical symbols
IEC Guide 108:2006, Guidelines for ensuring the coherency of IEC publications – Application
of horizontal standards
ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles
for safety signs and safety markings
ISO 7000, Graphical symbols for use on equipment – Index and synopsis
ISO 7010:2011, Graphical symbols – Safety colours and safety signs – Registered safety
signs
62648  IEC:2012 – 7 –
ISO 80416-2, Basic principles of graphical symbols for use on equipment – Part 2: Form and
use of arrows
ISO 80416-4, Basic principles for graphical symbols for use on equipment – Part 4:
Guidelines for the adaptation of graphical symbols for use on screens and displays (icons)
ISO/IEC Directives Part 2:2011, Rules for the structure and drafting of International Standards
ISO/IEC Directives:2011, Supplement – Procedures specific to IEC
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC Guide 108 and
Supplement to ISO/IEC Directives, and the following apply.
3.1
equipment
associated assemblies intended to achieve a defined final objective
[SOURCE: 3.3 of IEC 80416-1:2008]
3.2
graphical symbol
visual perceptive figure with a particular meaning used to transmit information independently
of language
[SOURCE: 3.4 of IEC 80416-1:2008]
3.3
graphical symbol for use on equipment
graphical symbol for use on associated assemblies intended to achieve a defined final
objective
[SOURCE: adapted from 3.3 and 3.4 of IEC 80416-1:2008]
3.4
safety related graphical symbol
graphical symbol for use on equipment that conveys a message with a relation to personal
and/or equipment safety and that is not qualified as a safety sign, e.g. because the related
risk is comparatively low
Note 1 to entry A safety related graphical symbol may e.g. express a prohibition (Do not . !) or a warning related
to a specific hazard (Caution! .); however it is not required to use the safety colours and shapes according to
ISO 3864-1. It can be standardized in IEC 60417 or ISO 7000.
3.5
safety sign
sign which gives a general safety message, obtained by a combination of colour and
geometric shape and which, by the addition of a graphical symbol, gives a particular safety
message
[SOURCE: ISO 17724:2003, definition 68]
3.6
safety symbol
graphical symbol used together with a safety colour and safety shape to form a safety sign
[SOURCE: ISO 17724:2003, definition 69]

– 8 – 62648  IEC:2012
3.7
danger
signal word used to indicate an imminently hazardous situation which, if not avoided, may
result in death or serious injury
[SOURCE: ISO 17724:2003, definition 18]
3.8
warning
signal word used to indicate a potentially hazardous situation which, if not avoided, could
result in death or serious injury
[SOURCE: ISO 17724:2003, definition 84]
3.9
caution
signal word used to indicate a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury or damage to the equipment
[SOURCE: ISO 17724:2003, definition 6, modified]
3.10
signal word
word that calls attention to a potentially or imminently hazardous situation
[SOURCE: ISO 17724:2003, definition 73]
3.11
icon
graphical symbol presented on a screen or display
Note 1 to entry Icons can be static, interactive and change as the result of user input or dynamic and change as
the result of equipment status.
[SOURCE: ISO 80416-4:2005, 3.3]
3.12
horizontal standard
IEC standard on fundamental principles, concepts, terminology or technical characteristics,
relevant to a number of technical committees and of crucial importance to ensure the
coherence of the corpus of standardization documents
[SOURCE: IEC Guide 108:2006, 3.1, modified]
3.13
product publication
publication covering a specific product or group of related products
Note 1 to entry In this international standard, the term product includes items such as process, service,
installation and combinations thereof, commonly known as systems.
[SOURCE: IEC Guide 108:2006, 3.2 – Note has been modified]
3.14
change request
task description for addition, withdrawal or change of one or more graphical symbols in
IEC 60417, submitted by an authorized person or body, which will be reviewed and updated
by secretary of the responsible committee, possibly with the support of a maintenance team,
for evaluation by the validation team VT 60417
Note 1 to entry It is possible that changes to IEC 60417 resulting from several change requests are combined, or
that a single change request is subdivided, at any stage in the process.

62648  IEC:2012 – 9 –
Note 2 to entry ISO TC 145/SC 3 operates similar procedures in respect of change requests relating to ISO 7000.
[SOURCE: Adapted from ISO/IEC Directives:2011, Supplement – Procedures specific to IEC,
Annex J]
3.15
validation team
permanent, “executive”, group of experts appointed by and acting as delegates on behalf of
their National Committees to execute evaluation and validation of Change Requests and to
vote for their release as part of IEC 60417
Note 1 to entry All P-members have the right and duty to appoint an own member of the team. The validation
team reports to the technical committee or subcommittee.
Note 2 to entry The described procedure in ISO/IEC Directives, Supplement – Procedures specific to IEC asks
for very short response times from the validation team members. Therefore, the National Committees should
appoint one or more deputies that can take over the task when the ordinary one for any reason is absent (travel,
business, etc.)
Note 3 to entry It is for the National Committee to decide for how long time a member should be appointed, and
also to organize the possible supporting network of experts on National level.
Note 4 to entry The secretariat manages the validation team.
[SOURCE: ISO/IEC Directives:2011, Supplement – Procedures specific to IEC, J.3.5,
modified]
3.16
hard procedure
set of rules and guidelines to be followed in order for graphical symbols for use on equipment
to be standardized in IEC 60417 or in ISO 7000 and to be referred to in IEC publications, i.e.
provisions in relevant parts of ISO/IEC Directives and IEC Guide 108
3.17
soft procedure
set of rules and guidelines to be followed in order for graphical symbols for use on equipment
to be designed, and for standardized graphical symbols for use on equipment to be applied to
and adapted as icons, i.e. provisions in relevant parts of IEC 80416-1, ISO 80416-2,
IEC 80416-3 and ISO 80416-4
4 Basic requirement for graphical symbols for use on equipment to be
included in IEC publications
Graphical symbols for use on equipment included in IEC publications shall be in accordance
with IEC 60417 and ISO 7000. To meet this requirement, the provisions given in Clause 5
shall be followed.
Annex A provides hard and soft procedures to be followed, Annex B provides examples of the
applications of graphical symbols for use on equipment, and Annex C provides a form to
propose change requests.
5 Principal guidelines
5.1 General
The method of referring to graphical symbols for use on equipment shall be in accordance
with IEC 80416-3. Regarding the designation systems of graphical symbols for use on
equipment, IEC 80416-1:2008, Annex C, shall apply.

– 10 – 62648  IEC:2012
5.2 Coherency of graphical symbols for use on equipment
All graphical symbols for use on equipment within product publications shall be coherent
without contradictions. For this purpose, the IEC and ISO corpus of graphical symbols for use
on equipment have been standardized and maintained in the horizontal standard IEC 60417,
and ISO 7000. Therefore, all technical committees and subcommittees shall consult
IEC 60417 and ISO 7000 in advance of drafting any graphical symbols for use on equipment
for their own purpose to be included in product publications.
5.3 Procedures to develop product publications including graphical symbols for use
on equipment
5.3.1 Committees developing product publications, dealing with graphical symbols for use on
equipment, shall incorporate IEC 60417 and ISO 7000 into their own publication by reference.
If necessary, they may specify additional details relevant to their product area in accordance
with IEC 80416-3:2002, 4.4.
Where, exceptionally, it is not practicable to reference the standards referred to above,
committees should ensure that such parts of those standards as are used are not altered
when introduced into their own publications. In this case, IEC 60417 concerned should be
indicated.
5.3.2 Committees responsible for product publications which include non-standardized
graphical symbols for use on equipment should ensure that they are adapted to comply with
the design rules in IEC 80416-1 and ISO 80416-2 and requirements of IEC 60417 or ISO 7000
when the product publication is next amended or revised.
5.3.3 If a committee determines that graphical symbols in IEC 60417 and ISO 7000 are not
adequate for its intended application, it shall submit, to SC 3C or ISO TC 145/SC 3,
respectively, a formal proposal for change request together with a proposed symbol which
complies with the appropriate design principles.
If a committee responsible for a product standard determines that graphical symbols in
IEC 60417 are not suitable for the committee's intended application it shall submit a formal
proposal to SC 3C for a change request for either:
• a new graphical symbol; or,
• an amendment to an existing graphical symbol standardized IEC 60417.
5.3.4 If, after consultation between SC 3C and the committee, SC 3C considers that the
proposed new graphical symbol or proposed amendment to an existing graphical symbol are
not suitable for inclusion in IEC 60417, the committee shall request a derogation from
IEC 60417 from the SMB and give detailed reasons for the request.
If the request for a derogation is accepted by the SMB, the committee may include the new or
amended graphical symbol in the product standard and this shall be indicated in the foreword
of the standard (see ISO/IEC Directives, Part 2:2011, 6.1.3).
Relevant documents generated in the course of the development of the project should be
drawn to the attention of SC 3C responsible for IEC 60417.
5.3.5 In the case of change requests related to IEC 60417, realistic target dates shall be
agreed between SC 3C and the committee concerned.
___________
5.3.1 to 5.3.5 are adapted from the relevant part of IEC Guide 108.

62648  IEC:2012 – 11 –
Annex A
(normative)
Hard and soft procedures
A.1 General
As far as graphical symbols for use on equipment are concerned, every IEC (and ISO)
document drafted in accordance with the ISO/IEC Directives, Part 2:2011, shall follow the
provision in the second paragraph of 6.6.5.6. Namely, “Graphical symbols for use on
equipment shall be in accordance with IEC 60417 and ISO 7000”.
The following two types of procedures shall be followed to meet the provision:
a) Hard procedures according to ISO/IEC Directives, Part 2, 6.6.5.6, ISO/IEC Directives:2011,
Supplement – Procedures specific to IEC, Annex J and IEC Guide 108; and
b) Soft procedures according to IEC 80416-1 and ISO 80416-2.
A.2 Hard procedures
Hard procedures are the relevant rules and guidelines, which shall be followed for graphical
symbols for use on equipment to be included in IEC documents and publications. Questions
and associated answers in Table A.1 provide a step-by-step approach.
Table A.1 – Step-by-step approach to the hard procedures
Step Questions Answers
1 Do you plan for graphical symbols for use on Yes. No.
equipment to be included in IEC documents?
Continue to step 2. [termination]
2 Are they found in IEC 60417 or ISO 7000? No. Yes.
Continue to step 3. Use them in accordance with
- IEC 80416-3, in case of normal
use (including: negate, fill,
rotate);
- ISO 80416-4, in case of icons;
- IEC 80416-1:2008, 7.9, in case
of negation. See also Table B.3.
[termination]
3 Have you co-ordinated with No. Yes.
IEC TC 3/SC 3C (maintaining IEC 60417) or
Follows the soft Relevant Committees and
ISO TC 145/SC 3 (maintaining ISO 7000)?
procedures in A.3. Validation Teams / Maintenance
Teams take necessary action.
[termination]
For execution of the hard procedures, committees responsible for maintenance of IEC 60417
(i.e. IEC TC 3/SC 3C) and ISO 7000 (i.e. ISO TC 145/SC 3) are involved. In the case of
IEC 60417, validation team 60417 and maintenance team 60417, if required, together with
relevant committees are major players.

– 12 – 62648  IEC:2012
A.3 Soft procedures
A.3.1 General
Soft procedures are the relevant rules and guidelines, which shall be followed for
– new graphical symbols for use on equipment to be designed, and
– existing graphical symbols for use on equipment in IEC 60417 or ISO 7000 to be applied
and adapted as icons.
A.3.2 Soft procedures for designing new graphical symbols
In order to design new graphical symbols for use on equipment to be co-ordinated with the
committees responsible for maintenance of IEC 60417 or ISO 7000, IEC 80416-1 and
ISO 80416-2 shall be followed.
Special considerations on use of the equilateral triangle as a surrounding shape shall be
taken. See also examples in Annex B.
A graphical symbol element of the equilateral triangle as a sounding shape shall only be
allowed for safety related graphical symbols. Whether such graphical symbols are within the
boundary of safety related graphical symbols or not shall be judged by maintenance team
60417 with the help of relevant committees, if necessary, in collaboration with the committee
under development of such graphical symbols.
A combination of a circle and a slanted bar in any colour shall not be a constituting part of
graphical symbols for use on equipment according to IEC 80416-1:2008, 7.9.4.
Unique title and description for each of newly designed graphical symbols shall be prepared in
accordance with IEC 80416-1. The title shall be a mere name to be spoken of and shall be a
noun or a noun phrase. The description shall provide and/or define a meaning of the newly
designed graphical symbol for use on equipment. How to prepare the description shall follow
IEC 80416-1:2008, Annex A.
A.3.3 Soft procedures for using existing graphical symbols
For the application of existing graphical symbols for use on equipment such as being included
in and/or being referenced to IEC publications, IEC 80416-3 shall be followed.
For the adaptation of existing graphical symbols for use on equipment such as for use on
screens and displays (icons), ISO 80416-4 shall be followed.

62648  IEC:2012 – 13 –
Annex B
(informative)
Examples of applications of graphical symbols
for use on equipment
B.1 General
Annex B provides guidelines for the inclusion of graphical symbols in IEC publications by
examples and illustrate the difference between graphical symbols for use on equipment,
safety symbols and safety signs. Safety signs deliver safety messages, such as danger,
warning and caution.
Some safety signs are composed of graphical symbols for use on equipment together with the
safety shape and safety colour, where such graphical symbols for use on equipment are
called safety symbols.
In creation and inclusion of new graphical symbols for use on equipment, one should be
certain that they are within the boundary of IEC 60417 and ISO 7000.
B.2 Examples
B.2.1 Examples of graphical symbols for use on equipment and safety signs
The graphical symbols for use on equipment shown in the left-hand column of Table B.1 have
been standardized in IEC 60417 or ISO 7000 and comply with IEC 80417-1. The safety signs
in the right-hand column have been standardized in ISO 7010 and comply with ISO 3864-1
using graphical symbols for use on equipment as safety symbols.
Table B.1 shows examples of the relationship of IEC 60417-5937 and ISO 7010-P007,
IEC 60417-5036 and ISO 7010-W012, and IEC 60417-5017 and ISO 7010-M005.

– 14 – 62648  IEC:2012
Table B.1 – Examples of graphical symbols
for use on equipment as safety symbols to form safety signs
Graphical symbol for use on equipment Safety sign
IEC 60417-5937 (2006-08): ISO 7010-P007 (2011):
Cardiac pacemaker; implantable No access for people with
cardioverter defibrillator active implanted cardiac
devices
On medical equipment. To prohibit people with active implanted cardiac
devices from entering a designated area.
To indicate a reference to an active implantable
cardiovascular device, for example, cardiac pacemaker or
implantable cardioverter defibrillator (ICD).
NOTE In case of application as a safety sign, the rules
according to ISO 3864-1 shall be adhered to.
IEC 60417-5036 (2002-10): ISO 7010-W012 (2011):
Dangerous voltage Warning; Electricity

To indicate hazards arising from dangerous voltages. To warn of electricity.
NOTE In case of application in a warning sign the rules
according to ISO 3864-1 shall be adhered to.
IEC 60417-5017(2006-08): ISO 7010-M005 (2011):
Earth; ground Connect an earth terminal to
the ground
To identify an earth (ground) terminal in cases where To signify that an earth terminal must be connected.
neither the symbol 5018 nor 5019 is explicitly required.

Safety signs shall be used only for instructions which are related to the safety and health of
people.
All normal graphical symbols for use on equipment have been standardized in IEC 60417 or
ISO 7000 for references to and inclusion in IEC publications, if required, in accordance with
IEC 80416-3. All safety signs have been standardized in ISO 7010.
B.2.2 Examples of safety related graphical symbols for use on equipment and safety
signs
Some safety related graphical symbols for use on equipment standardized in IEC 60417 have
been used also as safety signs standardized in ISO 7010 with the special shape and colour.
An example of safety related graphical symbol for use on equipment to convey the message
of “caution” standardized in IEC 60417 is shown in the left hand column in Table B.2. The
similar shaped graphical symbol in the right hand column in Table B.2 has been standardized
in ISO 7010 to convey the message of “Warning”.

62648  IEC:2012 – 15 –
All safety related graphical symbol for use on equipment may be standardized in IEC 60417
(or ISO 7000) for references to and inclusion in IEC publications, if required, in accordance
with IEC 80416-3. All safety signs have been standardized in ISO 7010.
Table B.2 – Example of safety related graphical symbol
for use on equipment and safety sign
Safety related graphical symbol for use on equipment Safety sign
IEC 60417-5041 (2002-10): ISO 7010-W017 (2011):
Caution, hot surface Warning; Hot surface

To indicate that the marked item can be hot and should To warn of a hot surface.
not be touched without taking care.
NOTE 1 The inner symbol is standardized in
ISO 7000-0535 "Transfer of heat, general".
NOTE 2 Warning signs are standardized in ISO 3864-1.

B.2.3 Examples of negation of graphical symbols for use on equipment
Some graphical symbols for use on equipment standardized in IEC 60417 and ISO 7000 may
be negated in accordance with IEC 80416-1:2008, 7.9. The standardization of the negated
graphical symbol in IEC 60417 is only necessary if the negated version represents a specific
meaning such as to indicate:
a) the non-availability of a function due to cancellation by the user or for operational reasons,
or;
b) required behaviour (such as “do not”).
Some examples are shown in Table B.3. Other examples are found in IEC 80416-1:2008,
Figure 5.
A circle combined with a diagonal bar, in any colour including black and white, shall not be
used for the negation of graphical symbols for use on equipment standardized in IEC 60417
or ISO 7000. See also IEC 80416-1:2008, 7.9.4.

– 16 – 62648  IEC:2012
Table B.3 – Examples of negation of the meaning of graphical symbols
for use on equipment
Graphical symbol for use on equipment Negated graphical symbol
IEC 60417-5988 (2009-06): Not standardized:
Computer network Computer network not
available
To identify the computer network itself or to indicate the To identify that the computer network itself or the
connecting terminals of the computer network. connecting terminals of the computer networks are
not available or accessible.
IEC 60417-5080 (2002-10): IEC 60417-5436 (2002-10):
Loudspeaker Sound muting
To identify the socket, terminals or switch for a To identify the control for suppressing the sound.
loudspeaker.
62648  IEC:2012 – 17 –
Annex C
(informative)
IEC 60417 – Proposal form for new graphical symbols
The completed form should be sent by email to the Secretary of SC 3C. The symbol drawing
may be submitted as a separate vector graphics file which should be editable in CorelDraw or
Adobe Illustrator. Alternatively the drawing may be included in the form by using the
embedded CorelDraw file containing the corner markings and basic pattern. For the provision
for title, description and note(s), IEC 80416-1:2008, Annex A, shall be referred to. For
guidance for the wording of the description of a symbol original, IEC 80416-1:2008, Annex B,
should be referred to.
NOTE Latest version of this form can be downloaded from URL: http://sc3c.iec.ch/ . Select under Standing
documents SC3C_Forms.zip
Reference number:    (a new reference number will be allocated by SC 3C where appropriate)
English title:    French title:
English product    (if appropriate) French product    (if appropriate)
type: type:
(eg. “On dish washers”)
English description: French description:

English note(s):    (if appropriate) French note(s):    (if appropriate)
Main field of Restricted Yes No
application: application:
Second field of Users: General public
application
Specialist users
Purpose and    Notes on special    (if appropriate)
justification: context of use:
Relevant    (if appropriate) Need for liaison and
documents: coordination:
(other interested committees,
including ISO and other bodies)
Drawing :  Submitted separately
Embedded below
– 18 – 62648  IEC:2012
CorelDraw template (embedded file) with corner
markings and basic pattern from IEC 80416-1
NOTE Additional templates can be downloaded from the
SC 3C area of the IEC web site. These include a comma
separated variable (csv) template containing the field
names for submitting the texts in database compatible
format, and an Adobe Illustrator file for drawings
containing the corner markings and basic pattern.

IEC  947/12
___________
This information is given for the convenience of users of this International Standard and does not constitute an
endorsement by IEC of the product named.

62648  IEC:2012 – 19 –
Bibliography
ISO 17724:2003, Graphical symbols – Vocabulary

_____________
– 20 – 62648 © CEI:2012
SOMMAIRE
AVANT-PROPOS . 21
INTRODUCTION . 23
1 Domaine d’application . 24
2 Références normatives . 24
3 Termes et définitions . 25
4 Exigence de base pour les symboles graphiques utilisables sur le matériel à
inclure dans les publications de la CEI . 27
5 Principales lignes directrices . 28
5.1 Généralités. 28
5.2 Cohérence des symboles graphiques utilisables sur le matériel . 28
5.3 Procédures pour élaborer des publications de produits comprenant des
symboles graphiques utilisables sur le matériel . 28
Annexe A (normative) Procédures fermes et souples . 30
Annexe B (informative) Exemples d’applications de symboles graphiques utilisables
sur le matériel . 32
Annexe C (informative) CEI 60417 – Formulaire de proposition de nouveaux
symboles graphiques . 36
Bibliographie . 38

Tableau A.1 – Approche par étape des procédures fermes . 30
Tableau B.1 – Exemples de symboles graphiques utilisables sur le matériel et de
signaux de sécurité . 33
Tableau B.2 – Exemple de symbole graphique relatif à la sécurité utilisable sur le
matériel et de signal de sécurité . 34
Tableau B.3 – Exemples de négation de symboles graphiques utilisables sur le
matériel . 35

62648 © CEI:2012 – 21 –
COMMISSION ÉLECTROTECHNIQUE INTERNATIONALE
____________
SYMBOLES GRAPHIQUES UTILISABLES SUR LE MATÉRIEL –
LIGNES DIRECTRICES POUR L’INTRODUCTION DE SYMBOLES
GRAPHIQUES DANS LES PUBLICATIONS DE LA CEI

AVANT-PROPOS
1) La Commission Electrotechnique Internationale (CEI) est une organisation mondiale de normalisation
composée de l'ensemble des comités électrotechniques nationaux (Comités nationaux de la CEI). La CEI 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, la CEI – 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 la CEI"). 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 la CEI, participent
également aux travaux. La CEI
...

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Graphical symbols for use on equipment – Guidelines for the inclusion of
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l’introduction de symboles graphiques dans les publications de la CEI

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IEC 62648 ®
Edition 1.1 2015-12
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL STANDARD
NORME HORIZONTALE
Graphical symbols for use on equipment – Guidelines for the inclusion of

graphical symbols in IEC publications

Symboles graphiques utilisables sur le matériel – Lignes directrices pour

l’introduction de symboles graphiques dans les publications de la CEI

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 01.080.40 ISBN 978-2-8322-3105-0

IEC 62648 ®
Edition 1.1 2015-12
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
HORIZONTAL STANDARD
NORME HORIZONTALE
Graphical symbols for use on equipment – Guidelines for the inclusion of
graphical symbols in IEC publications

Symboles graphiques utilisables sur le matériel – Lignes directrices pour
l’introduction de symboles graphiques dans les publications de la CEI

– 2 – IEC 62648:2012+AMD1:2015 CSV

 IEC 2015
CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 Scope . 6

2 Normative references . 6

3 Terms and definitions . 7

4 Basic requirement for graphical symbols for use on equipment to be included in

IEC publications . 9

5 Principal guidelines . 9
5.1 General . 9
5.2 Coherency of graphical symbols for use on equipment . 10
5.3 Procedures to develop product publications including graphical symbols for
use on equipment . 10
Annex A (normative) Hard and soft procedures . 11
Annex B (informative) Examples of applications of graphical symbols for use on
equipment . 13
Annex C (informative) IEC 60417 – Proposal form for new graphical symbols . 18
Bibliography . 20

Table A.1 – Step-by-step approach to the hard procedures . 11
Table B.1 – Examples of graphical symbols for use on equipment as safety symbols to
form safety signs . 14
Table B.2 – Examples of safety related graphical symbols for use on equipment and
safety signs . 15
Table B.3 – Examples of negation of the meaning of graphical symbols for use on
equipment . 17

 IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________
GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT –

GUIDELINES FOR THE INCLUSION OF GRAPHICAL

SYMBOLS IN IEC PUBLICATIONS
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
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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
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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 consolidated version of the official IEC Standard and its amendment has been prepared
for user convenience.
IEC 62648 edition 1.1 contains the first edition (2012-06) [documents 3C/1778/FDIS and 3C/1793/
RVD] and its amendment 1 (2015-12) [documents 3C/1959/CDV and 3C/2077/RVC].
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions are in green text, deletions are in strikethrough red text. A
separate Final version with all changes accepted is available in this publication.

– 4 – IEC 62648:2012+AMD1:2015 CSV

 IEC 2015
International Standard IEC 62648 has been prepared by subcommittee 3C: Graphical symbols
for use on equipment, of IEC technical committee 3: Information structures, documentation

and graphical symbols.
It has the status of a horizontal standard in accordance with IEC Guide 108.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of the base publication and its amendment will
remain unchanged until the stability date indicated on the IEC web site 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.
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.
 IEC 2015
INTRODUCTION
A graphical symbol is defined as a visually perceptible figure with a particular meaning used

to transmit information independently of language. Graphical symbols are used on equipment

for a wide range of purposes. The understanding of such symbols can be improved by

consistent design. This is particularly important where families of symbols are used in one

location or on similar equipment. Good design also helps to maintain the legibility of graphical

symbols when they are reduced to small dimensions for application. Thus, there is a need for

those involved in technical works to collaborate with experts in SC 3C responsible for

developing and maintaining graphical symbols for use on equipment to be standardized in the

horizontal standard IEC 60417.

This international standard is intended for committees working on graphical symbols for use
on equipment to be included in their product publications. It provides them with guidelines on
how to create their own graphical symbols for use on equipment as well as on how to consult
SC 3C so that these symbols are also included in IEC 60417.
This international standard provides commonly agreeable procedures among SC 3C and other
committees developing product publications including graphical symbols for use on equipment
in accordance with IEC Guide 108.

– 6 – IEC 62648:2012+AMD1:2015 CSV

 IEC 2015
GRAPHICAL SYMBOLS FOR USE ON EQUIPMENT –

GUIDELINES FOR THE INCLUSION OF GRAPHICAL

SYMBOLS IN IEC PUBLICATIONS
1 Scope
This International Standard provides guidelines to ensure that graphical symbols for use on

equipment in IEC product publications are consistent with the requirements of horizontal
standard IEC 60417, and ISO 7000. This document is intended to be used by any technical
committees and subcommittees to develop graphical symbols for use on equipment for
inclusion in their product publications.
This document is based on and develops IEC Guide 108:2006, Clause 4.
For the creation of new graphical symbols for use on equipment, IEC 80416-1 and
ISO 80416-2 are used. For the application of standardized graphical symbols for use on
equipment, IEC 80416-3 and ISO 80416-4 are used.
This horizontal standard is primarily intended for use by technical committees in the
preparation of standards in accordance with the principles laid down in IEC Guide 108.
One of the responsibilities of a technical committee is, wherever applicable, to make use of
horizontal standards in the preparation of its publications. The contents of this horizontal
standard will not apply unless specifically referred to or included in the relevant publications.
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 60417, Graphical symbols for use on equipment
IEC 80416-1:2008, Basic principles for graphical symbols for use on equipment – Part 1:
Creation of graphical symbols for registration

IEC 80416-3:2002, Basic principles for graphical symbols for use on equipment – Part 3:
Guidelines for the application of graphical symbols
IEC Guide 108:2006, Guidelines for ensuring the coherency of IEC publications – Application
of horizontal standards
ISO 3864-1, Graphical symbols – Safety colours and safety signs – Part 1: Design principles
for safety signs and safety markings
ISO 7000, Graphical symbols for use on equipment – Index and synopsis
ISO 7010:2011, Graphical symbols – Safety colours and safety signs – Registered safety
signs
 IEC 2015
ISO 80416-2, Basic principles of graphical symbols for use on equipment – Part 2: Form and

use of arrows
ISO 80416-4, Basic principles for graphical symbols for use on equipment – Part 4:

Guidelines for the adaptation of graphical symbols for use on screens and displays (icons)

ISO/IEC Directives Part 2:2011, Rules for the structure and drafting of International Standards

ISO/IEC Directives:2011, Supplement – Procedures specific to IEC

3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC Guide 108 and
Supplement to ISO/IEC Directives, and the following apply.
3.1
equipment
associated assemblies intended to achieve a defined final objective
[SOURCE: 3.3 of IEC 80416-1:2008]
3.2
graphical symbol
visual perceptive figure with a particular meaning used to transmit information independently
of language
[SOURCE: 3.4 of IEC 80416-1:2008]
3.3
graphical symbol for use on equipment
graphical symbol for use on associated assemblies intended to achieve a defined final
objective
[SOURCE: adapted from 3.3 and 3.4 of IEC 80416-1:2008]
3.4
safety related graphical symbol
graphical symbol for use on equipment that conveys a message with a relation to personal
and/or equipment safety and that is not qualified as a safety sign, e.g. because the related
risk is comparatively low
Note 1 to entry A safety related graphical symbol may e.g. express a prohibition (Do not . !) or a warning related
to a specific hazard (Caution! .); however it is not required to use the safety colours and shapes according to
ISO 3864-1. It can be standardized in IEC 60417 or ISO 7000.
3.5
safety sign
sign which gives a general safety message, obtained by a combination of colour and
geometric shape and which, by the addition of a graphical symbol, gives a particular safety
message
[SOURCE: ISO 17724:2003, definition 68]
3.6
safety symbol
graphical symbol used together with a safety colour and safety shape to form a safety sign
[SOURCE: ISO 17724:2003, definition 69]

– 8 – IEC 62648:2012+AMD1:2015 CSV

 IEC 2015
3.7
danger
signal word used to indicate an imminently hazardous situation which, if not avoided, may

result in death or serious injury

[SOURCE: ISO 17724:2003, definition 18]

3.8
warning
signal word used to indicate a potentially hazardous situation which, if not avoided, could

result in death or serious injury

[SOURCE: ISO 17724:2003, definition 84]
3.9
caution
signal word used to indicate a potentially hazardous situation which, if not avoided, may result
in minor or moderate injury or damage to the equipment
[SOURCE: ISO 17724:2003, definition 6, modified]
3.10
signal word
word that calls attention to a potentially or imminently hazardous situation
[SOURCE: ISO 17724:2003, definition 73]
3.11
icon
graphical symbol presented on a screen or display
Note 1 to entry Icons can be static, interactive and change as the result of user input or dynamic and change as
the result of equipment status.
[SOURCE: ISO 80416-4:2005, 3.3]
3.12
horizontal standard
IEC standard on fundamental principles, concepts, terminology or technical characteristics,
relevant to a number of technical committees and of crucial importance to ensure the
coherence of the corpus of standardization documents
[SOURCE: IEC Guide 108:2006, 3.1, modified]

3.13
product publication
publication covering a specific product or group of related products
Note 1 to entry In this international standard, the term product includes items such as process, service,
installation and combinations thereof, commonly known as systems.
[SOURCE: IEC Guide 108:2006, 3.2 – Note has been modified]
3.14
change request
task description for addition, withdrawal or change of one or more graphical symbols in
IEC 60417, submitted by an authorized person or body, which will be reviewed and updated
by secretary of the responsible committee, possibly with the support of a maintenance team,
for evaluation by the validation team VT 60417
Note 1 to entry It is possible that changes to IEC 60417 resulting from several change requests are combined, or
that a single change request is subdivided, at any stage in the process.

 IEC 2015
Note 2 to entry ISO TC 145/SC 3 operates similar procedures in respect of change requests relating to ISO 7000.

[SOURCE: Adapted from ISO/IEC Directives:2011, Supplement – Procedures specific to IEC,

Annex J]
3.15
validation team
permanent, “executive”, group of experts appointed by and acting as delegates on behalf of

their National Committees to execute evaluation and validation of Change Requests and to

vote for their release as part of IEC 60417

Note 1 to entry All P-members have the right and duty to appoint an own member of the team. The validation

team reports to the technical committee or subcommittee.
Note 2 to entry The described procedure in ISO/IEC Directives, Supplement – Procedures specific to IEC asks
for very short response times from the validation team members. Therefore, the National Committees should
appoint one or more deputies that can take over the task when the ordinary one for any reason is absent (travel,
business, etc.)
Note 3 to entry It is for the National Committee to decide for how long time a member should be appointed, and
also to organize the possible supporting network of experts on National level.
Note 4 to entry The secretariat manages the validation team.
[SOURCE: ISO/IEC Directives:2011, Supplement – Procedures specific to IEC, J.3.5,
modified]
3.16
hard procedure
set of rules and guidelines to be followed in order for graphical symbols for use on equipment
to be standardized in IEC 60417 or in ISO 7000 and to be referred to in IEC publications, i.e.
provisions in relevant parts of ISO/IEC Directives and IEC Guide 108
3.17
soft procedure
set of rules and guidelines to be followed in order for graphical symbols for use on equipment
to be designed, and for standardized graphical symbols for use on equipment to be applied to
and adapted as icons, i.e. provisions in relevant parts of IEC 80416-1, ISO 80416-2,
IEC 80416-3 and ISO 80416-4
4 Basic requirement for graphical symbols for use on equipment to be
included in IEC publications
Graphical symbols for use on equipment included in IEC publications shall be in accordance
with IEC 60417 and ISO 7000. To meet this requirement, the provisions given in Clause 5

shall be followed.
Annex A provides hard and soft procedures to be followed, Annex B provides examples of the
applications of graphical symbols for use on equipment, and Annex C provides a form to
propose change requests.
5 Principal guidelines
5.1 General
The method of referring to graphical symbols for use on equipment shall be in accordance
with IEC 80416-3. Regarding the designation systems of graphical symbols for use on
equipment, IEC 80416-1:2008, Annex C, shall apply.

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 IEC 2015
5.2 Coherency of graphical symbols for use on equipment

All graphical symbols for use on equipment within product publications shall be coherent

without contradictions. For this purpose, the IEC and ISO corpus of graphical symbols for use

on equipment have been standardized and maintained in the horizontal standard IEC 60417,

and ISO 7000. Therefore, all technical committees and subcommittees shall consult
IEC 60417 and ISO 7000 in advance of drafting any graphical symbols for use on equipment

for their own purpose to be included in product publications.

5.3 Procedures to develop product publications including graphical symbols for use

on equipment
5.3.1 Committees developing product publications, dealing with graphical symbols for use on
equipment, shall incorporate IEC 60417 and ISO 7000 into their own publication by reference.
If necessary, they may specify additional details relevant to their product area in accordance
with IEC 80416-3:2002, 4.4.
Where, exceptionally, it is not practicable to reference the standards referred to above,
committees should ensure that such parts of those standards as are used are not altered
when introduced into their own publications. In this case, IEC 60417 concerned should be
indicated.
5.3.2 Committees responsible for product publications which include non-standardized
graphical symbols for use on equipment should ensure that they are adapted to comply with
the design rules in IEC 80416-1 and ISO 80416-2 and requirements of IEC 60417 or ISO 7000
when the product publication is next amended or revised.
5.3.3 If a committee determines that graphical symbols in IEC 60417 and ISO 7000 are not
adequate for its intended application, it shall submit, to SC 3C or ISO TC 145/SC 3,
respectively, a formal proposal for change request together with a proposed symbol which
complies with the appropriate design principles.
If a committee responsible for a product standard determines that graphical symbols in
IEC 60417 are not suitable for the committee's intended application it shall submit a formal
proposal to SC 3C for a change request for either:
• a new graphical symbol; or,
• an amendment to an existing graphical symbol standardized IEC 60417.
5.3.4 If, after consultation between SC 3C and the committee, SC 3C considers that the
proposed new graphical symbol or proposed amendment to an existing graphical symbol are
not suitable for inclusion in IEC 60417, the committee shall request a derogation from
IEC 60417 from the SMB and give detailed reasons for the request.
If the request for a derogation is accepted by the SMB, the committee may include the new or
amended graphical symbol in the product standard and this shall be indicated in the foreword
of the standard (see ISO/IEC Directives, Part 2:2011, 6.1.3).
Relevant documents generated in the course of the development of the project should be
drawn to the attention of SC 3C responsible for IEC 60417.
5.3.5 In the case of change requests related to IEC 60417, realistic target dates shall be
agreed between SC 3C and the committee concerned.
___________
5.3.1 to 5.3.5 are adapted from the relevant part of IEC Guide 108.

 IEC 2015
Annex A
(normative)
Hard and soft procedures
A.1 General
As far as graphical symbols for use on equipment are concerned, every IEC (and ISO)

document drafted in accordance with the ISO/IEC Directives, Part 2:2011, shall follow the

provision in the second paragraph of 6.6.5.6. Namely, “Graphical symbols for use on

equipment shall be in accordance with IEC 60417 and ISO 7000”.
The following two types of procedures shall be followed to meet the provision:
a) Hard procedures according to ISO/IEC Directives, Part 2, 6.6.5.6, ISO/IEC Directives:2011,
Supplement – Procedures specific to IEC, Annex J and IEC Guide 108; and
b) Soft procedures according to IEC 80416-1 and ISO 80416-2.
A.2 Hard procedures
Hard procedures are the relevant rules and guidelines, which shall be followed for graphical
symbols for use on equipment to be included in IEC documents and publications. Questions
and associated answers in Table A.1 provide a step-by-step approach.
Table A.1 – Step-by-step approach to the hard procedures
Step Questions Answers
1 Do you plan for graphical symbols for use on Yes. No.
equipment to be included in IEC documents?
Continue to step 2. [termination]
2 Are they found in IEC 60417 or ISO 7000? No. Yes.
Continue to step 3. Use them in accordance with
- IEC 80416-3, in case of normal
use (including: negate, fill,
rotate);
- ISO 80416-4, in case of icons;
- IEC 80416-1:2008, 7.9, in case
of negation. See also Table B.3.
[termination]
3 Have you co-ordinated with No. Yes.
IEC TC 3/SC 3C (maintaining IEC 60417) or
Follows the soft Relevant Committees and
ISO TC 145/SC 3 (maintaining ISO 7000)?
procedures in A.3. Validation Teams / Maintenance
Teams take necessary action.
[termination]
For execution of the hard procedures, committees responsible for maintenance of IEC 60417
(i.e. IEC TC 3/SC 3C) and ISO 7000 (i.e. ISO TC 145/SC 3) are involved. In the case of
IEC 60417, validation team 60417 and maintenance team 60417, if required, together with
relevant committees are major players.

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 IEC 2015
A.3 Soft procedures
A.3.1 General
Soft procedures are the relevant rules and guidelines, which shall be followed for

– new graphical symbols for use on equipment to be designed, and

– existing graphical symbols for use on equipment in IEC 60417 or ISO 7000 to be applied

and adapted as icons.
A.3.2 Soft procedures for designing new graphical symbols

In order to design new graphical symbols for use on equipment to be co-ordinated with the
committees responsible for maintenance of IEC 60417 or ISO 7000, IEC 80416-1 and
ISO 80416-2 shall be followed.
Special considerations on use of the equilateral triangle as a surrounding shape shall be
taken. See also examples in Annex B.
A graphical symbol element of the equilateral triangle as a sounding shape shall only be
allowed for safety related graphical symbols. Whether such graphical symbols are within the
boundary of safety related graphical symbols or not shall be judged by maintenance team
60417 with the help of relevant committees, if necessary, in collaboration with the committee
under development of such graphical symbols.
A combination of a circle and a slanted bar in any colour shall not be a constituting part of
graphical symbols for use on equipment according to IEC 80416-1:2008, 7.9.4.
Unique title and description for each of newly designed graphical symbols shall be prepared in
accordance with IEC 80416-1. The title shall be a mere name to be spoken of and shall be a
noun or a noun phrase. The description shall provide and/or define a meaning of the newly
designed graphical symbol for use on equipment. How to prepare the description shall follow
IEC 80416-1:2008, Annex A.
A.3.3 Soft procedures for using existing graphical symbols
For the application of existing graphical symbols for use on equipment such as being included
in and/or being referenced to IEC publications, IEC 80416-3 shall be followed.
For the adaptation of existing graphical symbols for use on equipment such as for use on
screens and displays (icons), ISO 80416-4 shall be followed.

 IEC 2015
Annex B
(informative)
Examples of applications of graphical symbols

for use on equipment
B.1 General
Annex B provides guidelines for the inclusion of graphical symbols in IEC publications by

examples and illustrate the difference between graphical symbols for use on equipment,

safety symbols and safety signs. Safety signs deliver safety messages, such as danger,
warning and caution.
Some safety signs are composed of graphical symbols for use on equipment together with the
safety shape and safety colour, where such graphical symbols for use on equipment are
called safety symbols.
In creation and inclusion of new graphical symbols for use on equipment, one should be
certain that they are within the boundary of IEC 60417 and ISO 7000.
B.2 Examples
B.2.1 Examples of graphical symbols for use on equipment and safety signs
The graphical symbols for use on equipment shown in the left-hand column of Table B.1 have
been standardized in IEC 60417 or ISO 7000 and comply with IEC 80417-1 80416-1. The
safety signs in the right-hand column have been standardized in ISO 7010 and comply with
ISO 3864-1 using graphical symbols for use on equipment as safety symbols.
Table B.1 shows examples of the relationship of IEC 60417-5937 and ISO 7010-P007,
IEC 60417-5582 and ISO 7010-P026, IEC 60417-5036 and ISO 7010-W012, IEC 60417-5140
and ISO 7010-W005, and IEC 60417-5017 60417-5019 and ISO 7010-M005.

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 IEC 2015
Table B.1 – Examples of graphical symbols for use on equipment
as safety symbols to form safety signs

Graphical symbol for use on equipment Safety sign

IEC 60417-5937 (2006-08): ISO 7010-P007 (2011-05)

Cardiac pacemaker; implantable No access for people with
cardioverter defibrillator active implanted cardiac

devices.
On medical equipment. To prohibit people with active implanted
cardiac devices from entering a designated
To indicate a reference to an active implantable cardiovascular
area.
device, for example, cardiac pacemaker or implantable
cardioverter defibrillator (ICD).
NOTE In case of application as a safety sign, the rules
according to ISO 3864-1 shall be adhered to.
IEC 60417-5582 (2002-10): ISO 7010-P026 (2011-05)
Suitable for use in a bath or Do not use this device in a
shower bathtub, shower or water-
filled reservoir.
To identify electrical appliances, for example wet shavers, which To prohibit the use of unsuitable electrical
are suitable for use in a bath or shower. equipment in or near water.
NOTE See also the symbol IEC 60417-5574.
IEC 60417-5036 (2002-10): ISO 7010-W012 (2011-05)
Dangerous voltage Warning; Electricity

To indicate hazards arising from dangerous voltages. To warn of electricity.
NOTE In case of application in a warning sign the rules
according to ISO 3864-1 shall be adhered to.
IEC 60417-5140 (2003-04): ISO 7010-W005 (2011-05)
Non-ionizing electromagnetic Warning; Non-ionizing
radiation radiation
To indicate generally elevated, potentially hazardous, levels of To warn of non-ionizing radiation.

non-ionizing radiation, or to indicate equipment or systems e.g. in
the medical electrical area that include RF transmitters or that
intentionally apply RF electromagnetic energy for diagnosis or
treatment.
NOTE In case of application in a warning sign the rules
according to ISO 3864 shall be adhered to.
IEC 60417-5017 60417-5019 ISO 7010-M005 (2011-05)
(2006-08):
Connect an earth terminal
Protective earth; protective to the ground
ground
To identify an earth (ground) terminal in cases where neither the To signify that an earth terminal must be
symbol 5018 nor 5019 is explicitly required any terminal which is connected.
intended for connection to an external conductor for protection
against electric shock in case of a fault, or the terminal of a
protective earth (ground) electrode.

 IEC 2015
Safety signs shall be used only for instructions which are related to the safety and health of
people.
All normal graphical symbols for use on equipment have been standardized in IEC 60417 or
ISO 7000 for references to and inclusion in IEC publications, if required, in accordance with

IEC 80416-3. All safety signs have been standardized in ISO 7010.

B.2.2 Examples of safety related graphical symbols for use on equipment and

safety signs
Some safety related graphical symbols for use on equipment standardized in IEC 60417

relating to safety aspects (safety related graphical symbols) have been used also as safety
symbols to compose safety signs, which were standardized in ISO 7010 with special shape
and colour.
An example of safety related graphical symbol for use on equipment to convey the message
of “caution” standardized in IEC 60417 is shown in the left hand column in Table B.2. The
similar shaped graphical symbol in the right hand column in Table B.2 has been standardized
in ISO 7010 to convey the message of “Warning”.
All safety related graphical symbol for use on equipment may be standardized in IEC 60417
(or ISO 7000) for references to and inclusion in IEC publications, if required, in accordance
with IEC 80416-3. All safety signs have been standardized in ISO 7010.
Table B.2 – Examples of safety related graphical symbols
for use on equipment and safety signs
Safety related graphical symbol for use on equipment Safety sign
IEC 60417-5041 (2002-10): ISO 7010-W017 (2011):
Caution, hot surface Warning; Hot surface

To indicate that the marked item can be hot and should To warn of a hot surface.
not be touched without taking care.
NOTE 1 The inner symbol is standardized in
ISO 7000-0535 "Transfer of heat, general".
NOTE 2 Warning signs are standardized in ISO 3864-1.
IEC 60417-5152 (2002-10): ISO 7010-W004 (2011-05):

Radiation of laser apparatus Warning; Laser beam

To identify the radiation of laser products. To warn of a laser beam.
NOTE In case of application in a warning sign the rules
according to ISO 3864 shall be adhered to.

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 IEC 2015
B.2.3 Examples of negation of graphical symbols for use on equipment

Some graphical symbols for use on equipment standardized in IEC 60417 and ISO 7000 may

be negated in accordance with IEC 80416-1:2008, 7.9. The standardization of the negated

graphical symbol in IEC 60417 is only necessary if the negated version represents a specific

meaning such as to indicate:
a) the non-availability of a function due to cancellation by the user or for operational reasons,

or;
b) required behaviour (such as “do not”).

Some examples are shown in Table B.3. Other examples are found in IEC 80416-1:2008,

Figure 5.
A circle combined with a diagonal bar, in any colour including black and white, shall not be
used for the negation of graphical symbols for use on equipment standardized in IEC 60417
or ISO 7000. See also IEC 80416-1:2008, 7.9.4.

 IEC 2015
Table B.3 – Examples of negation of the meaning of graphical symbols
for use on equipment
Graphical symbol for use on equipment Negated graphical symbol

IEC 60417-5988 (2009-06): Not standardized:

Computer network Computer network not
available
To identify the computer network itself or to indicate the To identify that the computer network itself or the
connecting terminals of the computer network. connecting terminals of the computer networks are
not available or accessible.
IEC 60417-5080 (2002-10): IEC 60417-5436 (2002-10):
Loudspeaker Sound muting
To identify the socket, terminals or switch for a To identify the control for suppressing the sound.
loudspeaker.
IEC 60417-5641 (2002-10): IEC 60417-6096 (2012-01):
Suitable for covering Do not cover

To indicate an electrical appliance, for instance a towel
To indicate - in order to avoid overheating - that the
rail, that by design is suitable for draping with clothing or
electrical appliance, for instance a room heater or an
other material.
AC power adapter, should not be draped with clothing
NOTE In case of application as a safety sign, the rules or other material.
according to ISO 3864 shall be adhered to.
IEC 60417-5019 (2006-08): IEC 60417-6032 (2010-02):
Protective earth; protective ground Do not connect to protective
earth; do not connect to
protective ground
To identify any terminal which is intended for connection To indicate that conductive parts shall not be
to an external conductor for protection against electric connected to protective earth (ground), e.g. on
shock in case of a fault, or the terminal of a protective electrical equipment with conductive parts inside an
earth (ground) electrode. insulating enclosure.

NOTE The use of this symbol is described in
IEC 60364-4-41.
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 IEC 2015
Annex C
(informative)
IEC 60417 – Proposal form for new graphical symbols

The completed form should be sent by email to the Secretary of SC 3C. The symbol drawing

may be submitted as a separate vector graphics file which should be editable in CorelDraw or
Adobe Illustrator. Alternatively the drawing may be included in the form by using the
embedded CorelDraw file containing the corner markings and basic pattern. For the provision

for title, description and note(s), IEC 80416-1:2008, Annex A, shall be referred to. For

guidance for the wording of the description of a symbol original, IEC 80416-1:2008, Annex B,

should be referred to.
NOTE Latest version of this form can be downloaded from URL: http://sc3c.iec.ch/ . Select under Standing
documents SC3C_Forms.zip
Reference number:    (a new refere
...