E0903-20 : standard test method for solar absorptance, reflectance, and transmittance of materials using integrating spheres
ASTM International
E0903-20 : standard test method for solar absorptance, reflectance, and transmittance of materials using integrating spheres - ASTM International 2020
E0903-20 : standard test method for solar absorptance, reflectance, and transmittance of materials using integrating spheres - ASTM International 2020