GSO ASTM E1175:2021
使用大直径积分球测定材料的日光或光视觉反射率、透射率和吸收率的标准测试方法

Standard Test Method for Determining Solar or Photopic Reflectance, Transmittance,and Absorptance of Materials Using a Large Diameter Integrating Sphere

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标准号

GSO ASTM E1175:2021

发布

2021年

发布单位

GSO

当前最新

GSO ASTM E1175:2021

 

 

适用范围

This test method covers the measurement of the absolute total solar or photopic reflectance, transmittance, or absorptance of materials and surfaces. Although there are several applicable test methods employed for determining the optical properties of materials, they are generally useful only for flat, homogeneous, isotropic specimens. Materials that are patterned, textured, corrugated, or are of unusual size cannot be measured accurately using conventional spectrophotometric techniques, or require numerous measurements to obtain a relevant optical value. The purpose of this test method is to provide a means for making accurate optical property measurements of spatially nonuniform materials.

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