ASTM E1980 PDF

ASTM E Is the American Society for Testing and Materials document titled, “ Standard Practice for Calculating Solar Reflectance Index of Horizontal and. ASTM Standards for Measuring Solar Reflectance and Infrared. Emittance of Construction Materials and Comparing their. Steady-State Surface Temperatures. 1, ASTM E specifications. 2. 3, Quantity, Name, Value, Units. 4, Solar reflectance of black surface, RB, 5, Solar reflectance of white surface, RW,

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