TSE CEN/TS 15989

TSE CEN/TS 15989 is the technical specification for graphical symbols used on control elements, displays and markings of firefighting and rescue service vehicles and equipment. Its subject is the visual language that helps operators identify functions and status quickly and consistently, especially on specialised emergency vehicles and devices.

Why graphical symbols matter

In firefighting and rescue operations, controls and displays are often used under time pressure and in demanding conditions. Graphical symbols provide a language-neutral interface that makes controls, status indications and external markings easier to recognise at a glance. In general technical practice, well-designed symbols support legibility, functional separation and fast comprehension. They help users move between different vehicle types and equipment layouts with less ambiguity and a more consistent visual logic.

What this technical specification covers

• Graphical symbols for control elements
• Graphical symbols for displays
• Markings for firefighting and rescue service vehicles and equipment
• Symbolic representations that support clear visual identification of related functions and equipment

This document focuses on the graphical symbols applicable to firefighting and rescue service vehicles and equipment; it is not a general operating manual for the vehicles themselves, nor does it define overall vehicle design or performance requirements. Its emphasis is on consistent symbol form and functional meaning. That makes control panels, warnings and markings easier to interpret within the same technical environment and reduces reliance on wording alone.