This standard specifies the product classification, requirements, test methods, inspection rules and markings, packaging, transportation and storage of offset printing paper. This standard applies to double-sided printing paper used for offset printing of books, covers, illustrations, pictures, etc.
GB/T 1543 Paper and board-Determination of opacity(paper backing)-Diffuse reflectance method
GB/T 1545 Paper,board and pulp.Determination of acidity or alkalinity
GB/T 22365 Paper and board.Determination of printing surface strength
GB/T 2828.1 Inspection procedure by count sampling part 1: Lot by lot inspection sampling plan retrieved by acceptance quality limit (AQL)*, 2013-02-15 Update
GB/T 450 Paper and board.Sampling for testing and identification of machine and cross direction,wire side and felt side
GB/T 451.1 Paper and board--Determination of size and deviation
GB/T 451.2 Paper and paperboard Part 2: Quantitative determination*, 2023-12-28 Update
GB/T 451.3 Paper and board determination of thickness
GB/T 456 Paper and board determination of smoothness (Bekk method)
GB/T 457-2008 Paper and board.Determination of folding endurance
GB/T 459 Paper and board determination of demensional instability
GB/T 462 Determination of moisture content of analytical samples of paper, paperboard and pulp*, 2023-09-07 Update
GB/T 7974 Paper,board and pulps.Measurement of diffuse blue reflectance factor.D65 brightness(Diff/ Geometry, Outdoor daylight conditions)*, 2013-10-10 Update
GB/T 7975 Paper and board-Determination of color(diffuse reflectance method)
QB/T 1020 Standard inks for testing printability of paper and board*, 2018-10-22 Update