Astm D523 Pdf New !!top!! -

Measurements are performed using a calibrated . The device shines a beam of light at one of the specified angles and measures the intensity of the reflected light with a photo detector. D523 Standard Test Method for Specular Gloss - ASTM

Applied to "sheen" or matte surfaces that measure below 10 GU at the 60° angle. This grazing angle is more sensitive to differences in low-gloss textures. How Specular Gloss is Measured astm d523 pdf new

The latest version of the primary international standard for measuring surface shininess is , approved in June 2025 . This standard defines a rigorous methodology for quantifying "specular gloss"—the ability of a nonmetallic surface to reflect light in a mirror-like direction. Measurements are performed using a calibrated

The standard specifies three primary measurement angles (geometries) to ensure accuracy across different levels of shininess: This grazing angle is more sensitive to differences

Standardized gloss measurement is critical for maintaining quality across global supply chains in industries like automotive, aerospace, and consumer electronics. Core Measurement Geometries