Letters (symbols)
Bend testing
Chromaticity
Dimensions
Road vehicle components
Luminance
Solvent-resistance tests
Colour
Registration plates (vehicles)
Specimen preparation
Vibration testing
Marking
Impact testing
Thermal testing
Reflective materials
Corrosion tests
Test equipment
Number plates
Vehicle components
Salt-spray tests
Retroreflective materials
Design
Visual inspection (testing)
Layout
Graphic characters
Reflection factor
Thermal-cycling tests
Artificial weathering tests
Environmental testing
Digits
Performance testing
Photometry (light measurement)