Mechanical
Rheological
Heat resistance
Thermal analysis
Physical
Electrical
Combustion (Fire)
Thermal aging
Weathering
Optical
Gloss index
Color measurement
Grayscale
determination
Image analysis
Chemical resistance
Shrinkage
Image analysis
These test methods are used to determine surface changes following processing, after-treatment, light aging, weathering and temperature aging.

The sample surface is scanned under the microscope before and after being subjected to stress.
The percentage damage to the tested surface, and an image section representative of the sample surface is obtained.

The pictures on the right are examples of a sample surface before and after exposure to light.