Overview
ISO 80416-4:2005 - Basic principles for graphical symbols for use on equipment: Part 4 provides guidelines for adapting standardized graphical symbols into icons for screens and displays. It covers principles to preserve the original symbol’s visual impression and meaning when rendered on a wide range of devices (photocopiers, vehicle dashboards, home appliances, consumer electronics and software GUIs). The standard focuses on legibility, fidelity, and consistent interpretation of icons across physical equipment and digital displays.
Key topics and technical requirements
- Scope and application: Guidance for icons presented in monochrome or limited/full colour on different display technologies (CRT, LCD, embedded panels).
- Fidelity & consistency: Maintain meaning and visual impression when adapting ISO/IEC graphical symbols; avoid changing standardized meanings.
- Colour guidance:
- Account for the default colour palette of the operating system or environment.
- Typical device palettes: 2‑bit (monochrome), 4‑bit (16 colours), 8‑bit (256 colours).
- Use dithering (checker‑boarding) only with similar tonal values; reserve saturated colours for emphasis (warnings/status).
- Icon construction principles:
- Pixel and cell sizing (e.g., 16×16, 32×32 examples) and placement rules to ensure legibility at small sizes.
- Line drawing, anti‑aliasing and filled areas guidance to avoid jagged edges and loss of detail.
- Distinguishability rules to make icons perceptually different and usable at different resolutions.
- Treatment of arrows, composite icons, and orientation rules.
- Behavioural aspects:
- Static vs. interactive icons, status indication, animated and dynamic icons, and how icons may change with system state.
- Documentation: Icons used in standards should reference the original graphical symbol registration number to preserve traceability.
- Annexes: Examples of adapted symbols (Annex A) and guidance for designing new icons when no suitable symbol exists (Annex B).
Applications
- UI and HMI design for embedded systems, consumer appliances, medical devices, automotive dashboards, office equipment and desktop/web applications.
- Ensures consistent iconography across printed labels, engraved markings and on‑screen representations.
- Useful during localization, accessibility reviews and when porting icons between platforms with different colour/bit constraints.
Who should use this standard
- UX/UI designers, iconographers and graphic designers
- Product engineers and embedded system developers
- Human‑machine interface (HMI) engineers and industrial designers
- Compliance officers and technical writers producing operating manuals or standards-aligned documentation
Related standards
Keywords: ISO 80416-4:2005, icon design, graphical symbols, screens and displays, icon adaptation, UI guidelines, ISO standard.
Open preview (PDF)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)
