ISO 17724:2026
(Main)Graphical symbols — Vocabulary
Graphical symbols — Vocabulary
This document defines terms related to graphical symbols, principally symbols for public information safety signs and use on equipment. This document does not include terms related to graphical symbols for diagrams (technical product documentation (TPD) symbols). The definitions are intended to serve as a basis for consideration by those concerned with producing new standards or revising existing ones.
Symboles graphiques — Vocabulaire
L'ISO 17724:2003 définit les termes relatifs aux symboles graphiques, principalement les symboles pour l'information du public et ceux utilisés sur le matériel et les signaux de sécurité. Elle ne prend pas en compte les symboles graphiques pour schémas [symboles pour la documentation technique de produits (dtp)]. Les définitions sont prévues pour être prises en considération par tous ceux qui sont impliqués dans le développement de nouvelles normes ou dans la révision de normes existantes.
General Information
- Status
- Published
- Publication Date
- 11-Jan-2026
- Technical Committee
- ISO/TC 145 - Graphical symbols
- Drafting Committee
- ISO/TC 145 - Graphical symbols
- Current Stage
- 6060 - International Standard published
- Start Date
- 12-Jan-2026
- Due Date
- 09-Oct-2026
- Completion Date
- 12-Jan-2026
Relations
- Effective Date
- 12-Oct-2024
Overview
ISO 17724:2026, Graphical symbols - Vocabulary, establishes a clear, consistent terminology associated with graphical symbols used for public information, safety signs, and equipment marking. Published by the International Organization for Standardization (ISO), this standard supports professionals who create, standardize, and utilize graphical symbols in various sectors. It plays a foundational role in ensuring international consistency and mutual understanding through harmonized definitions, excluding those relating to technical product documentation (TPD) diagrams.
Key Topics
This standard focuses on essential terms that underpin the use and development of graphical symbols. Some core concepts defined include:
- Graphical symbol: A visually perceptible figure conveying information independently of language.
- Safety symbol: A graphical symbol designed for integration with safety colours and shapes to form safety signs.
- Basic graphical symbol: The base figure from which related symbols can be developed.
- Registered graphical symbol original: A standardized version approved by a relevant standards authority.
- Sign and sign carrier: The overall configuration (including symbols, text, and shapes) and its physical medium.
- Contrast and legibility: Definitions clarifying positive/negative contrast and visual clarity, critical to ensuring signs are effective.
- Supporting elements: Terms such as border, chevron, panel, and corner marks that define features and formatting in symbols and signs.
By standardizing this vocabulary, ISO 17724:2026 enables unambiguous communication in sectors that rely on non-textual communication, such as safety, transportation, and public facilities management.
Applications
ISO 17724:2026 delivers significant practical value across a range of industries:
- Public Information: Ensures that symbols for restrooms, exits, accessibility, and wayfinding are used and interpreted consistently in public spaces.
- Safety and Compliance: Lays the foundation for safety signage in workplaces, transportation hubs, and public infrastructure, helping to fulfil regulatory and risk management requirements.
- Equipment Design and Marking: Guides manufacturers in marking equipment controls, warnings, and instructions with universally understood graphical symbols.
- Standardization and Development: Acts as a reference for those developing new symbol sets, revising existing standards, or creating educational resources in sectors like engineering, facility management, and public safety.
Adopting ISO 17724:2026 supports global harmonization, reduces the risk of misinterpretation, and improves accessibility for users regardless of language.
Related Standards
ISO 17724:2026 complements a suite of standards that address specific aspects of graphical symbols, safety signage, and public information. Key related standards include:
- ISO 3864 series: Safety colours and safety signs - principles for design and use.
- ISO 9186 series: Test methods for comprehensibility of graphical symbols.
- ISO 17398: Safety colours and safety signs - classification and performance.
- ISO 20712 series: Water safety signs and beach safety flags.
- ISO 22727: Creation and design of public information symbols.
- ISO 23601: Escape and evacuation plan signs.
- IEC 80416 series: Basic principles for graphical symbols for use on equipment.
By referencing ISO 17724:2026, organizations ensure that they are aligned with internationally recognized definitions, laying the groundwork for cohesive, understandable signage and graphical communication.
Keywords: ISO 17724:2026, graphical symbols vocabulary, public information symbols, safety signs, equipment marking, standardization, international standards, signage terminology, ISO standards for symbols.
Frequently Asked Questions
ISO 17724:2026 is a standard published by the International Organization for Standardization (ISO). Its full title is "Graphical symbols — Vocabulary". This standard covers: This document defines terms related to graphical symbols, principally symbols for public information safety signs and use on equipment. This document does not include terms related to graphical symbols for diagrams (technical product documentation (TPD) symbols). The definitions are intended to serve as a basis for consideration by those concerned with producing new standards or revising existing ones.
This document defines terms related to graphical symbols, principally symbols for public information safety signs and use on equipment. This document does not include terms related to graphical symbols for diagrams (technical product documentation (TPD) symbols). The definitions are intended to serve as a basis for consideration by those concerned with producing new standards or revising existing ones.
ISO 17724:2026 is classified under the following ICS (International Classification for Standards) categories: 01.040.01 - Generalities. Terminology. Standardization. Documentation (Vocabularies); 01.080.01 - Graphical symbols in general. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 17724:2026 has the following relationships with other standards: It is inter standard links to ISO 17724:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 17724:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
International
Standard
ISO 17724
Second edition
Graphical symbols — Vocabulary
2026-01
Symboles graphiques — Vocabulaire
Reference number
© ISO 2026
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
Bibliography . 4
Index . 5
iii
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee, ISO/TC 145, Graphical symbols.
This second edition cancels and replaces the first edition (ISO 17724:2003), which has been technically
revised.
The main changes are as follows:
— addition of an introduction;
— deleted terms which are not core or which are covered in other ISO TC 145 standards;
— renumbered definitions;
— updated Bibliography.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
Introduction
This document provides a consolidated vocabulary for the graphical symbol sector. Graphical symbols can
be viewed on the ISO Online Browsing Platform at https://www.iso.org/obp/ui, which contains all the terms
and definitions in all ISO deliverables, including those contained in this document. Users of this document
should refer to the ISO OBP as the first source for current terms and definitions.
Further terms and definitions for graphical symbols are given in the following documents:
— ISO 3864 series and ISO 17398 (safety colours and safety signs);
— ISO 9186 series (test methods);
— ISO 16069 and ISO 22578 series (safety
...




Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...