GB/T 28121-2011 Tea bag paper of non heat seal type

GB/T 25436-2023 Filter paper for teabags

GB/T 450-2002 Paper and board—Sampling for testing GB/T 450-2008 Paper and board—Sampling for testing and identification of machine and cross direction,wire side and felt side GB/T 451.1-2002 Paper and board—Determination of size and deviation GB/T 451.2-2002 Paper and board—Determination of grammage GB/T 451.2-2023 Paper and board—Part 2:Determination of grammage GB/T 451.3-2002 Paper and board—Determination of thickness GB/T 462-2003 Paper and board—Determination of moisture content GB/T 462-2008 Paper,board and pulp—Determination of moisture content of analytical sample GB/T 462-2023 Paper, board and pulps—Determination of moisture content of analytical sample GB/T 465.2-2008 Paper and board—Determination of tensile strength after immersion in water GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 5009.78-2003 Method for analysis of hygienic standard of papers for food packaging GB/T 10340-2008 Paper and board—Determination of filtering rate GB/T 10342-2002 Paper—Package and mark GB/T 10739-2002 Paper, board and pulps—Standard atmosphere for conditioning and testing GB/T 10739-2023 Paper,board and pulps—Standard atmosphere for conditioning and testing GB 11680-1989 Hygienic standard of paper used for food packaging GB/T 12914-1991 Paper and board—Determination of tensile properties—Constant rate of elongation method GB/T 12914-2008 Paper and board—Determination of tensile properties GB/T 12914-2018 Paper and board—Determination of tensile properties—Constant rate of elongation method(20 mm/min) GB/T 23227-2008 Materials used as cigarette papers,filter plug wrap and filter joining paper,including materials having an oriented permeable zone—Determination of air permeability GB/T 23227-2018 Materials used as cigarette papers,filter plug wrap and filter joining paper,including materials having a discrete or oriented permeable zone and materials with bands of differing permeability—Determination of air permeability GB/T 24996-2010 Determination of deinking recycled fiber in paper