The TAPPI T 452 standard specifies a method for measuring pulp, paper and Cardboard luminance, assessed using a directional reflectance at a wavelength of 457 nanometers. Optical inspection properties of paper are important indicators of their ability to reflect blue light. The standard requires the use of specific geometric configurations, i.e. 45 ° illumination and 0 ° viewing angles, to ensure accuracy and conformity of measurement results.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | ICS | ||
| Release Date | 2018-01-01 00:00:00 | Implementation Date | |