Astm D523 Pdf New Link

The most recent official publication of this standard is , titled "Standard Test Method for Specular Gloss," which was released in June 2025 . It supersedes the previous long-standing version, ASTM D523-14(2018) . Key Details of ASTM D523-25

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Formulating architectural paints, industrial coatings, and powder finishes. The most recent official publication of this standard

If the 60° gloss value is greater than 70 GU (indicating a highly reflective, high-gloss surface), the standard recommends using the 20° geometry. This angle is more sensitive to small differences in gloss on high-gloss surfaces, which often appear too similar when measured at 60°, making it the standard for evaluating high-gloss paints, polished metals (non-metallic coatings), and glossy plastics. If you are looking for the latest PDF,

If you are looking for the latest PDF, keep these points in mind: D523 Standard Test Method for Specular Gloss - ASTM

The standard utilizes three primary angles to categorize different gloss levels: