Retro-reflecting materials for traffic safety; photometric minimum requirements for retro-reflective units for delineators and for road markings— 2 стр.
Retro-reflecting materials for traffic safety; photometric evaluation, measurement and characterization of retroreflectors and retro-reflecting sheetings— 3 стр.
Retro-reflecting materials for traffic safety; photometric minimum requirements for nighttime markings, for delineators and for road markings for road traffic