GB/T 24320-2009 Recycled fiber pulp

GB/T 24320-2021 Recycled fiber pulp

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 740-2003 Pulps—Sampling for testing GB/T 742-2003 Paper,board and pulp—Determination of residue(ash) on ignition at 900℃ GB/T 742-2008 Fibrous raw material,pulp,paper and board—Determination of ash GB/T 742-2018 Fibrous raw material,pulp,paper and board—Determination of residue(ash)on ignition at 575 ℃ and 900 ℃ 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 7974-2002 Paper, board and pulp-Measurement of brightness—Diff/Geometry GB/T 7974-2013 Paper,board and pulps—Measurement of diffuse blue reflectance factor—D65 brightness(Diff/ Geometry,Outdoor daylight conditions) GB/T 8940.2-2002 Pulp—Preparation of laboratory sheets for the measurement of brightness 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/T 10740-2002 Pulp—Estimation of dirt and shives GB/T 20216-2006 Determination of effective residual ink GB/T 20216-2016 Pulp and paper—Determination of the effective residual ink concentration(ERIC number)—Infrared reflectance measurement GB/T 21557-2008 Estimation of stickies in waste paper GB/T 24323-2009 Pulps—Laboratory sheets—Determination of physical properties GB/T 24324-2009 Pulps—Preparation of laboratory sheets for physical testing—Conventional sheet-former method QB/T 1462-1992 Pulp laboratory wet separation