ASTM D4061-1994(2006) 标准详情
- 标准号:ASTM D4061-1994(2006)
- 中文标题:平面涂层回复反射的标准试验方法
- 英文标题:Standard Test Method for Retroreflectance of Horizontal Coatings
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1994
The quantity coefficient of retroreflected luminance is a measure of the reflected luminance in the direction of the observer. This is the light returned by the retroreflective surface to the observer from the source, which in practice is the ve
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