GB/T 7974-2013 《Paper, board and pulps - Measurement of diffuse blue reflectance factor - D65 brightness（Diff/Geometry,Outdoor daylight conditions）》 Related products
This standard specifies methods for the determination of the blue light diffuse reflection factor D65 luminance of paper, Cardboard and pulp, using the diffuse/vertical method and outdoor daylight conditions. The standard describes test equipment, operating procedures and data processing methods designed to provide accurate luminance measurement results to evaluate the visual mass and market adaptability of paper products.
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 | Y30 | ICS | 85.010 |
| Release Date | 2013-10-10 00:00:00 | Implementation Date | 2014-05-01 00:00:00 |
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Extended reading
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