ASTM D 589-1997 标准详情
- 标准号:ASTM D 589-1997
- 中文标题:纸不透明度的标准试验方法(15℃漫射光照明a,89%反射背衬和纸制背衬)
- 英文标题:standard test method for opacity of paper (15 diffuse illuminant a, 89% reflectance backing and paper backing)
- 标准类别:美国材料与试验协会ASTM
- 发布日期:1997-12-10
1.1 This test method covers the determination of the opacity of paper. 1.2 Two different types of "white" backing are specified, leading to two different opacity values, in accordance with Section 3. 1.3 This test method employs 15176; diffuse
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