GB/T 1543-2005
ActivePaper and board-Determination of Opacity(paper backing)-Diffuse reflectance method
纸和纸板 不透明度(纸背衬)的测定(漫反射法)
Application Summary AI generated
This standard specifies a diffuse reflectance method for measuring the opacity of paper and board using a paper backing. It is applied in the paper manufacturing and quality control industry to evaluate the show-through properties of printing papers, such as those used for books, magazines, and office documents. The test ensures that printed text or images on one side do not visibly interfere with the readability of the opposite side.
Related Standards
GB/T 10335.2-2005
Coated paper and board - Light weight coated paper
GB/T 7973-2003
Paper，board and pulps--Measurement of diffuse reflectance factor(Diff/Geometry)
GB/T 10335.4-2004
Coated paper and board--Coated folding board
GB/T 10335.3-2004
Coated paper and board--Coated ivory board
GB/T 10335.1-2005
Coated paper and board-Coated art paper
GB/T 1913.1-2005
Unbleached impregnating insulating paper
GB/Z 166-2026
Paper and board—Measurement of water contact angle by optical methods
GB/T 1540-2002
Paper and board--Determination of water absorption--Cobb method
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.