ASTM D4039-2009 标准详情
- 标准号:ASTM D4039-2009
- 中文标题:高光泽表面反射光雾的试验方法
- 英文标题:Standard Test Method for Reflection Haze of High-Gloss Surfaces
- 标准类别:美国材料与试验协会ASTM
- 发布日期:2009
Measured gloss values of specimens depend on the angle of illumination, refractive index of the material, and the geometric distribution of the reflected light. Haze is produced by irregularities in the reflecting surface that affect the distribu
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