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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 40969-2021 |
Paper and board—Determination of colour (D50/2°diffuse reflectance method) 纸和纸板 颜色的测定（D50/2°漫反射法) |
China National Standards 2°diffuse |
 English PDF |
| GB/T 21245-2007 |
Paper and board - Determination of color (C/2°diffuse reflectance method） 纸和纸板颜色的测定(C/2°漫反射法) |
China National Standards 2°diffuse |
English PDF |
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