ASTM E1477-1998a(2003) 标准详情
- 标准号:ASTM E1477-1998a(2003)
- 中文标题:使用集成球形反射计测定音响材料反光因素的标准试验方法
- 英文标题:Standard Test Method for Luminous Reflectance Factor of Acoustical Materials by Use of Integrating-Sphere Reflectometers
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1998
Acoustical materials are often used as the entire ceiling of rooms and are therefore an important component of the lighting system. The luminous reflectance of all important components must be known in order to predict the level of illumination tha
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