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GB/T 9107-2023 English PDF

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GB/T 9107-2023: Refined cotton
Status: Valid

GB/T 9107: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 9107-2023English779 Add to Cart 6 days [Need to translate] Refined cotton Valid GB/T 9107-2023
GB/T 9107-1999English999 Add to Cart 5 days [Need to translate] Refined cotton Obsolete GB/T 9107-1999
GB/T 9107-1988EnglishRFQ ASK 3 days [Need to translate] Refined, cotton Obsolete GB/T 9107-1988

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Basic data

Standard ID GB/T 9107-2023 (GB/T9107-2023)
Description (Translated English) Refined cotton
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G89
Classification of International Standard 71.100.30
Word Count Estimation 38,332
Date of Issue 2023-05-23
Date of Implementation 2023-05-23
Older Standard (superseded by this standard) GB/T 9107-1999
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

GB/T 9107-2023: Refined cotton

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 71:100:30 CCSG89 National Standards of People's Republic of China Replacing GB/T 9107-1999 refined cotton Released on 2023-05-23 2023-05-23 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Product model 2 4:1 Classification 2 4:2 Specification 2 4:3 Level 2 4:4 Model Composition 2 5 requirements 2 5:1 Refined cotton wool product foreign fiber 2 5:2 Impurities in refined cotton wool products 2 5:3 The dust degree of refined cotton roll (sheet) products is 3 5:4 Bursting strength of refined cotton products3 5:5 Quantitative quantity and thickness of refined cotton roll (sheet) products 5:6 Technical performance indicators of refined cotton for cellulose acetate 3 5:7 Technical performance indicators of refined cotton for cellulose ether 4 5:8 Technical performance indicators of refined cotton for nitrocellulose 6 6 Test method 7 6:1 General provisions 7 6:2 Sample preparation 7 6:3 Intrinsic viscosity7 6:4 α-cellulose content 7 6:5 Moisture content9 6:6 Moisture absorption 9 6:7 Ash content 11 6:8 Sulfuric acid insoluble content 11 6:9 Whiteness 12 6:10 Iron content 13 6:11 Acetone solubles 14 6:12 Foreign fibers 14 6:13 Impurities 15 6:14 Dust degree 15 6:15 Weight, thickness 15 6:16 Bursting strength 15 7 Inspection rules 15 7:1 Inspection classification 15 7:2 Identification test 16 7:3 Factory inspection 16 8 Marking, packaging, transportation, storage and delivery18 8:1 Sign 18 8:2 Packaging 18 8:3 Transport 19 8:4 Storage 19 8:5 Delivery 19 Appendix A (informative) Polymerization degree and viscosity range of refined cotton products of various specifications 20 Appendix B (Informative) Determination of Polymerization Degree 21 Appendix C (Informative) Determination of Viscosity 25 Appendix D (informative) Preparation method of cuproammonia solution 29 Reference 33

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document replaces GB/T 9107-1999 "Refined Cotton": Compared with GB/T 9107-1999, except for structural adjustments and editorial changes In addition, the main technical changes are as follows: a) The scope has been changed: the scope of application has been changed from alkaline cooking to cooking (see Chapter 1, Chapter 1 of the:1999 edition); b) Added product form (see 4:1:2), changed specifications (see 4:2, 3:2:2 of the:1999 edition), and model composition (see 4:4,:1999 edition version 3:2); c) Added foreign fibers for refined cotton floc products (see 5:1), impurities for refined cotton floc products (see 5:2), and refined cotton roll (sheet) products The degree of dust (see 5:3), the bursting strength of refined cotton products (see 5:4) and the basis weight and thickness of refined cotton roll (sheet) products (see 5:5); d) The product models of refined cotton for cellulose acetate, refined cotton for cellulose ether, and refined cotton for nitrocellulose have been added, and technical changes have been made: Technical performance indicators (see 5:6, 5:7, 5:8, 4:2:1, 4:2:3, 4:2:2 of the:1999 edition); e) Added general provisions (see 6:1), environmental requirements for sample preparation (see 6:2:1) and roll (sheet) sample preparation (see 6:2:3); f) Determination methods are added, including intrinsic viscosity (see 6:3), acetone soluble matter (see 6:11), foreign fibers (see 6:12), impurities (see 6:13), degree of dust (see 6:14), basis weight, thickness (see 6:15), bursting strength (see 6:16); g) Changed the inspection rules (see Chapter 7, Chapter 6 of the:1999 edition); h) The marking, packaging, transportation and storage have been changed (see Chapter 8, Chapter 7 of the:1999 edition), and delivery has been added (see 8:5): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by China Ordnance Industry Group Co:, Ltd: This document is drafted by: Hubei Jinhanjiang Refined Cotton Co:, Ltd:, North Chemical Industry Co:, Ltd:, China North Chemical Research Institute Group Corporation, China Ordnance Industry Standardization Institute, Beijing Institute of Technology, Hubei Xuefei Chemical Co:, Ltd:, Sichuan Push Cellulose Acetate Co:, Ltd: Limited Liability Company, Taian Ruitai Cellulose Co:, Ltd:, Yingte Chemical (Shijiazhuang) Co:, Ltd:, Nantong Yaohua Fiber Co:, Ltd:, Nantong Acetic Acid Fiber Co:, Ltd:, Manas Xiangyun Chemical Fiber Co:, Ltd:, Anhui Xuelong Fiber Technology Co:, Ltd:, and China Cellulose Industry Association: The main drafters of this document: Zhou Hangxu, Zhao Libin, Liu Yujun, Tian Ye, Fan Zongqing, Shao Ziqiang, Fan Jintao, Yao Congxin, Zhang Yaohui, Zou Yaobang, Sun Jiangang, Zheng Haobo, Sun Dequan, Liang Yinchun, Xie Wenqi, Ji Shouxin, Huang Weiping: This document was first released in 1988, revised for the first time in:1999, and this is the second revision: refined cotton

1 Scope

This document specifies the product type, requirements, test methods, inspection rules, marks, packaging, transportation, storage and delivery of refined cotton: This document is applicable to refined cotton produced from cotton linters through cooking, bleaching and other processes:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 451:2 Determination of Quantitative Quantity of Paper and Board GB/T 451:3 Determination of thickness of paper and cardboard Preparation of GB/T 601 Chemical Reagent Standard Titration Solution Preparation of preparations and products used in GB/T 603 test methods for chemical reagents GB/T 740 Pulp sample collection GB/T 1539 Determination of bursting strength of cardboard GB/T 1541 Determination of dustiness of paper and cardboard GB/T 1548 Determination of intrinsic viscosity value in pulp copper ethylenediamine (CED) solution GB/T 6682 Analytical laboratory water specifications and test methods GB/T 8170 Numerical rounding off rules and expression and determination of limit values GB/T 8946 General Technical Requirements for Plastic Woven Bags GB/T 22902 Determination of acetone soluble matter in pulp QB/T 2190 Wire brush

3 Terms and Definitions

The following terms and definitions apply to this document: 3:1 Cotton cellulose material produced by cooking and bleaching processes using cotton linters as raw material: 3:2 foreign fiber Non-cotton fibers and non-natural cotton fibers mixed with refined cotton: Note: Such as chemical fiber, hair, silk, hemp, plastic rope, plastic film, dyed thread (rope, cloth), etc: [Source: GB/T 20223-2018, 3:11, modified] 3:3 Impuritiesforeignmatter Yellow and black spots and other non-cotton fiber substances attached to the fiber surface: Note: such as sawdust, bamboo chips, sand, cottonseed hulls, metal objects, etc: [Source: GB/T 20223-2018, 3:13, modified]

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