NA 025
DIN Standards Committee Colour
Standards
[Withdrawn]
DIN 67520-4
DIN 67520-4
Retroreflecting materials for traffic safety - Part 4: Photometric minimum requirements for retroreflective sheeting of microprismatic constructions
Title (German)
Retroreflektierende Materialien zur Verkehrssicherung - Teil 4: Lichttechnische Mindestanforderungen an Reflexstoffe mikroprismatischer Materialien