Astm D523 Pdf -

If you need to learn more about gloss measurement or need help with testing to ASTM standards, consult relevant industry professionals or resources.

Used for most specimens. It helps determine if a more specialized angle (20° or 85°) is needed. 20° (High-Gloss): astm d523 pdf

Used for "sheen" or near-grazing shininess on dull surfaces (60° gloss values lower than 10 units). Common Applications If you need to learn more about gloss

: The measurement scale is based on a primary standard of highly polished black glass with a specific refractive index ( astm d523 pdf