Retroreflective and Fluorescent Trim Requirements
topic
EN 469 requires minimum retroreflective trim areas of 186 square centimetres per circumferential band and specific placement on coat, trouser, and hood to ensure 360-degree visibility, with trim retroreflective coefficient of retro-reflection above 330 millicandelas per square metre per lux measured per EN ISO 20471, while fluorescent yellow-green trim provides daytime conspicuity, with both trim types required to maintain performance after thermal conditioning and 25 laundering cycles representing service life exposure.
Role
Mandates the visibility enhancement required for firefighter conspicuity in smoke-filled interiors, at road traffic accident scenes, and in low-visibility conditions where firefighter visibility to colleagues and apparatus operators is essential for preventing collision and facilitating rapid location during emergency evacuation, with minimum trim areas and placement patterns standardised to ensure consistent visibility across all compliant garments regardless of manufacturer or model.