Vibration testing
Marking
Impact testing
Thermal testing
Reflective materials
Corrosion tests
Test equipment
Number plates
Vehicle components
Salt-spray tests
Photometry (light measurement)
Performance testing
Digits
Environmental testing
Retroreflective materials
Design
Visual inspection (testing)
Layout
Graphic characters
Reflection factor
Thermal-cycling tests
Artificial weathering tests
Specimen preparation
Registration plates (vehicles)
Colour
Solvent-resistance tests
Luminance
Road vehicle components
Dimensions
Chromaticity
Bend testing
Letters (symbols)
Link: BS AU 145e:2018 Specification for retroreflecting number plates
Source: BSI Standards
