If the initial 60-degree reading is below 10 GU , the material is low-gloss. You must re-test the sample using the 85-degree geometry for enhanced resolution. Step-by-Step Testing Procedure
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Comprehensive Guide to the ASTM D523-25 Standard for Specular Gloss astm d523 pdf new
The standard utilizes three specific angles (geometries) to ensure accuracy across different gloss levels:
This angle is designed specifically for highly reflective or high-gloss surfaces. By narrowing the angle, you reduce the diffuse light scatter, allowing for much greater resolution and accuracy when grading products like automotive clear coats or polished plastics. If the initial 60-degree reading is below 10
When you search for , you are not just looking for a file—you are looking for authority and accuracy .
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No. ASTM D523 is specifically designed for . Metallic surfaces require specialized testing, often using ASTM E2175, because their reflection characteristics are different. How are the results reported? Results are reported as specular gloss (e.g., 60∘60 raised to the composed with power 6. Conclusion
specimens (typically those measuring below 10 GU at 60°) or for measuring "sheen". New ASTM Digital Rights Management (DRM) Policy
This article provides a comprehensive overview of ASTM D523, focusing on the latest standards, testing procedures, and how to obtain the ASTM D523 PDF for your quality control (QC) laboratory. What is ASTM D523?