ASTM D7708-23
Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks
standard by ASTM International, 01/01/2023
ASTM D4093-23
Standard Test Method for Photoelastic Measurements of Birefringence and Residual Strains in Transparent or Translucent Plastic Materials
standard by ASTM International, 01/01/2023