Standard No.:	GB/T 43588-2023
English Name:	Paper, board and paper products—Assessment method of recyclability
Chinese Name:	纸、纸板和纸制品 可回收性评价方法
Chinese Classification:	Y30    Papermaking in general
Professional Classification:	GB    National Standard
Source Content Issued by:	State Administration for Market Regulation; Standardization Administration of China
Issued on:	2023-12-28
Implemented on:	2024-7-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	9000 words
Translation Price(USD):	270.0
Delivery:	via email in 1 business day

GB/T 43588-2023 Paper, board and paper products – Assessment method of recyclability 1 Scope This document describes two assessment methods for the recyclability of paper, board and paper products. This document is applicable to paper, board and paper products. Method A is applicable to packaging paper, board and paper products, and Method B is applicable to printed or unprinted paper, board and paper products. This document is not applicable to products such as diapers and sanitary napkins. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 450 Paper and board - Sampling for testing and identification of machine and cross direction, wire side and felt side GB/T 462 Paper, board and pulp - Determination of moisture content of analytical sample GB/T 5399 Pulps - Determination of stock concentration GB/T 21557-2008 Waste paper - Estimation of stickies GB/T 22877 Paper, board, pulps and cellulose nanomaterials - Determination of residue (ash content) on ignition at 525 ℃ GB/T 24323 Pulps - Laboratory sheets - Determination of physical properties GB/T 24326 Pulps - Preparation of laboratory sheets for physical testing - Rapid-Kothen method GB/T 24327 Pulps - Laboratory wet disintegration - Disintegration of chemical pulps GB/T 29287 Pulps - Laboratory beating - PFI mill method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 recyclability possibility of paper, board and paper products to be effectively recycled and used in the production of certain grades of paper, board and paper products based on common recycling standards and processes 3.2 flake content percentage of screening residue that cannot pass through the screen plate with a screen mesh diameter of 0.7mm after the specimen having been dissociated and roughly screened under the specified conditions in the laboratory to the mass of the specimen taken before screening 3.3 optical homogeneity visible heterogeneity on the hand sheet caused by non-fibrous components (excluding dyed fibers), including but not limited to impurities that show obvious opacity relative to the surface of the sheet Note: such as colored spots, white spots, and stains caused by non-fibrous materials like ink, coatings, and stickies, as well as transparent spots, and paper defects. 3.4 screening residue rate percentage of screening residue that cannot pass through the screen plate of a certain size after the specimen having been dissociated under the specified conditions in the laboratory to the total mass of the specimen 4 Method A 4.1 Rationale Under the specified conditions in the laboratory, the coarse residue rate, flake content, ash content, area of stickies of the specimens and the tensile index, burst index, tear index and optical homogeneity of the hand sheets are determined in accordance with the test procedures in Annex A. The recyclability of the specimen is assessed based on the determination results of coarse residue rate, flake content, area of stickies and optical homogeneity.

Contents Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Method A 5 Method B 6 Test report Annex A (Normative) Recyclability assessment test procedure (Method A) Annex B (Normative) Recyclability assessment test procedure (Method B)