Gloss index

This test method is used to determine optical surface changes induced by various stresses.

These stresses can include processing, after-treatment, light aging, weathering and temperature aging. The gloss level is measured using a reflectometer.

Measuring geometry:
20°, 60° and 85°

Test specimen Optical sample sheet  
Basic dimensions 60 mm x 40 mm x d  
Thickness 2 mm 3 mm 4 mm

 

Any standard geometries are suitable.

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