ASTM D523 is a standard test method that covers the measurement of the specular gloss of coatings using a goniophotometer or a specular glossmeter. The standard provides a procedure for measuring the gloss of paint coatings at 20°, 60°, and 85° angles of incidence. The test method is widely used to evaluate the appearance of paint coatings and to ensure that they meet the required specifications.
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 astm d523 pdf new
The ASTM D523 standard test method is widely used in various industries to evaluate the specular gloss of surfaces. The test method provides a reliable and accurate way to measure the mirror-like appearance of surfaces, which is important for their appearance, performance, and functionality. ASTM D523 is a standard test method that
Always calibrate your gloss meter using the polished black glass standard provided by the manufacturer before every testing session. The most recent official publication of this standard
The standard specifies three primary measurement angles to ensure high resolution across different levels of shininess: 60∘60 raised to the composed with power