Optical measurement
Specimen preparation
Buildings
Flaws
Length
Mirrors
Condensation
Glass
Damp-air tests
Metal coatings
Optical properties of materials
Acceptance (approval)
Defects
Dimensional tolerances
Test equipment
Test specimens
Reflectance factor
Corrosion tests
Silver
Thickness
Square shape
Visual inspection (testing)
Corrosion resistance
Environmental testing
Testing conditions
Width
Surface defects
Protective coatings