GB/T 21245-2007
ActivePaper 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)
Application Summary AI generated
This standard specifies the C/2° diffuse reflectance method for measuring the color of paper and board. It is applied in the paper industry for quality control and color matching of white, off-white, and colored paper products, particularly in printing, packaging, and stationery manufacturing. The method uses a spectrophotometer with C illuminant and 2° observer to quantify color coordinates under standardized lighting conditions.
Related Standards
GB/T 10335.2-2005
Coated paper and board - Light weight coated paper
GB/T 21244-2007
Paper
GB/T 20810-2006
Bathroom Tissue (Including Bathroom Tissue Base Paper)
QB/T 1057-2004
Paper and board—Tester of bursting strength
GB/T 747-2003
Pulps--Determination of acid-insoluble lignin
GB/T 743-2003
Pulps--Determination of ether solubles
GB/T 745-2003
Pulps--Determination of pentosan content
GB/T 7973-2003
Paper，board and pulps--Measurement of diffuse reflectance factor(Diff/Geometry)
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.