Astm D523 Pdf New !!top!!

Understanding the New ASTM D523-25 Standard for Specular Gloss

The standard utilizes three specific angles to capture light reflection precisely across different surface types: Application Gloss Range (at 60°) astm d523 pdf new

If your initial 60° measurement yields a result higher than 70 GU , the standard dictates switching to the 20° geometry. The 20° angle provides better resolution and differentiation between distinct high-gloss finishes that might otherwise look identical at 60°. 3. The 85° Geometry (Low Gloss / Matte) Target Range: Matte, flat, or low-gloss surfaces. Understanding the New ASTM D523-25 Standard for Specular

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