BSI - PREN 12899-6
Fixed vertical road traffic signs - Part 6: Visual performance of retroreflective sheeting materials
|Publication Date:||1 December 2008|
|ICS Code (Road equipment and installations):||93.080.30|
This standard specifies the visual performance for road users of retroreflective sheeting materials, as expressed by their retroreflection in vehicle headlamp illumination and their reflection and chromaticity in daylight.