IEC 80416-1:2008

IEC 80416-1:2008 - Overview

IEC 80416-1:2008 (published as a double‑logo IEC/ISO standard) defines the basic principles for the creation of graphical symbols for registration used on equipment. It standardizes how symbol originals are prepared so they are visually clear, consistent and suitable for registration in symbol databases such as IEC 60417 and ISO 7000. This second edition (2008) cancels and replaces the 2001 edition and contains technical revisions that affect symbol design, negation, line width and documentation requirements.

Key topics and technical requirements

• Scope and purpose: Principles for symbols that identify equipment parts, indicate functional states, designate connections, provide packaging or operational information. Excludes safety signs and technical drawings.
• Creation procedures: Formal rules for preparing a symbol original for registration, including structure and specification.
• Design guidelines: Requirements for legibility and consistency (orientation, spacing, angles, filled areas, use of characters and arrows).
• Line width: Mandatory line‑width options for symbol originals are specified as 2 mm or 4 mm, improving reproducibility and legibility.
• Negation: Methods of negation updated - a single diagonal bar is now permitted in addition to two diagonal bars at right angles; a new negation meaning "do not" is allowed.
• Basic pattern: Flexibility introduced for the basic pattern; symbol originals may be specified within a 75 mm square (alternative to the octagon).
• Documentation: Annex A (normative) provides rules for title, description and notes; notes are defined as purely informative.
• Registration focus: These principles are required for graphical symbols that will be registered and used internationally.

Practical applications and users

Who uses IEC 80416-1:

• Product designers and industrial designers creating equipment controls and displays
• Technical illustrators and icon designers preparing symbol originals
• Standards developers and national committees managing symbol registration
• Regulatory and compliance teams ensuring consistent marking and documentation
• Technical writers and documentation teams producing manuals and labels

Practical uses:

• Designing control panel icons, status indicators and connection symbols
• Preparing symbols for submission to IEC/ISO registries (IEC 60417 / ISO 7000)
• Ensuring cross‑language recognition and consistent application across product lines

Related standards

• IEC 80416 series (Parts 2–4) - form/use of arrows; guidelines for application and screen adaptation
• IEC 60417 - Registered graphical symbols for use on equipment
• ISO 7000 - Graphical symbols for use on equipment (index and database)
• IEC Guide 108 - horizontal standard guidance

Keywords: IEC 80416-1, graphical symbols, symbol registration, line width, negation, basic pattern, IEC 60417, ISO 7000, symbol originals.