This standard specifies the method for measuring the whiteness of white paper and paperboard using the internationally recognized CIE color system under simulated outdoor daylight (D65 light source) and a 10-degree viewing angle. It is specifically designed for evaluating white paper products, whether they contain fluorescent whitening agents or not. The measurement shall be performed using a whiteness meter or colorimeter with specific geometric optical configurations (such as diffuse reflection d/0° or 45/0°) and the capability to accurately simulate the D65 light source.
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 | 2008-12-30 00:00:00 | Implementation Date | 2009-09-01 00:00:00 |
