"Opacity " CNS Standards List |
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CNS 14931
2018 Edition Paper and paperboard - Determination of Opacity（paper backing）- Diffuse reflectance method 紙與紙板不透明度（紙張背襯）試驗法－擴散反射率法 |
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CNS 2387
2017 Edition Method of Test for Opacity of Paper (89% Reflectance Backing) 紙之不透明度試驗法（８９％反射率背襯） |
Translated |
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CNS 2387
1993 Edition Method of Test for Opacity of Paper (89% Reflectance Backing) 紙之不透明度試驗法（89 %反射率背襯） |
Translated |
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