GB/T 24999-2018
ActivePaper and board—Highest limitation of D65 brightness
纸和纸板 D65亮度最高限量
Application Summary AI generated
This standard specifies the maximum permissible D65 brightness levels for paper and board products to control optical brightening agents and ensure visual consistency. It is applied in the manufacturing and quality testing of white papers, such as printing, writing, and packaging grades, to prevent excessive brightness that may cause visual discomfort or environmental concerns. The standard is used by paper mills, testing laboratories, and regulatory bodies in China to set compliance benchmarks for domestic production and import inspection.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.