Astm D523 Pdf New -

, which compare the reflectance of a specimen to a black glass standard. It specifies three primary geometries (angles) to ensure high resolution across different finish levels: 20 raised to the composed with power (High Gloss): Used when the initial 60 raised to the composed with power reading exceeds . This angle is more sensitive to surface haze. 60 raised to the composed with power (Universal):

Understanding ASTM D523: The New Standard for Specular Gloss Measurement astm d523 pdf new

The procedure for measuring specular gloss using ASTM D523 involves the following steps: , which compare the reflectance of a specimen

: A detailed document describing the NIST reference goniophotometer astm d523 pdf new