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TAPPI T 562
作者:TECERT 发布于:2022-12-31 19:32:33 检测认证一站式服务 收藏:Ctrl+D
摘要:TAPPI T 562 CIE Whiteness and Tint of Paper and Paperboard (45/0 Geometry, C/2 Illuminant/Observer) 联系我们:info@tecert.com 安排测试 / Contact us for testing.
标准编号 Standard/Code | 标准名称 Standard Title |
TAPPI T 562 | CIE Whiteness and Tint of Paper and Paperboard (45/0 Geometry, C/2 Illuminant/Observer) |
This method is to be used to determine the CIE whiteness and tint indicies (1) of white or near white specimens with or without optical brighteners. Whiteness differs fundamentally from paper brightness in that whiteness includes the entire visible spectrum in its assessment whereas brightness includes only the blue portion of the spectrum.