ISO 17724:2026

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.