Military coatings, flat wall paints, interior automotive dashboards, and textured plastics.
is the official Standard Test Method for Specular Gloss. Published by ASTM International, this test method is primarily utilized to measure the specular (mirror-like) reflectance of non-metallic specimens. Gloss is typically associated with a surface's capacity to reflect more light in directions close to the specular angle than in other directions.
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In many applications, the gloss scales defined by ASTM D523 have provided instrumental scaling of coated specimens that has agreed well with visual scaling.
While ASTM typically does not release major structural overhauls in its standards annually, the revision to D523-25 ensures that the test method remains relevant and technically accurate. The new version reaffirms the core principles of the test method and confirms the continued use of the three primary measurement geometries (60°, 20°, and 85°). astm d523 pdf new
If you are looking to purchase the , you can find it directly on the ASTM website.
The standard utilizes three primary angles to categorize different gloss levels: Gloss is typically associated with a surface's capacity
This is the primary standard starting point for all unknown samples.
She turned to her desk, powering up her dual monitors. "We need the book, Marcus. The holy grail." While ASTM typically does not release major structural
The universal angle. Used for comparing most specimens and determining if higher or lower angles are required.
Ensures paint uniformity between metal body panels and plastic bumpers.