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TAPPI T 579 om-12 (R2018) determines the brightness of white, near-white, and naturally colored pulp, paper, andpaperboard. Brightness is a commonly used industry term for the numerical value of the reflectance factor of a samplewith respect to blue light of specific spectral and geometric characteristics. This method requires an instrumentemploying diffuse illumination and 0 viewing geometry.

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Published: 2012 Number of Pages: 7File Size: 1 file , 98 KB