EN 16268:2013

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Measurement methods
5 Durability test methods for evaluation
  of reflective materials based on maintained
  performance under different specified conditions
6 Classification
7 Assignment of Reflectance Class
8 Presentation of performance data
Annex A (normative) - Measurement of total, diffuse and
        specular reflectance and colour
Annex B (normative) - Measurement of abrasion and
        scratch resistance
Annex C (informative) - Further important properties of
        reflective materials
Annex D (informative) - Examples of structured surfaces
Bibliography

This European standard is applicable to the optical performance of untreated or coated materials supplied in plane sheet or strip form for use as a plane or formed reflector as well as preformed reflectors both as originally produced and after prescribed tests to determine probable maintained performance in service. This includes: a)untreated base materials, including:1)aluminium,2)steel,3)plastic,4)glass.b)surface treated materials, including:1)polished materials, 2)anodised materials,3)vacuum metallised materials,4)painted materials,5)multilayer systems.This European Standard is not applicable to fluorescent materials.