GB/T 5881-2024 English PDFUS$799.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5881-2024: Test methods for physical and chemical properties of ramie fiber Status: Valid GB/T 5881: Historical versions
Basic dataStandard ID: GB/T 5881-2024 (GB/T5881-2024)Description (Translated English): Test methods for physical and chemical properties of ramie fiber Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W30 Classification of International Standard: 59.060.10 Word Count Estimation: 40,494 Date of Issue: 2024-07-24 Date of Implementation: 2025-02-01 Older Standard (superseded by this standard): GB/T 5881-1986, GB/T 5882-1986, GB/T 5883-1986, GB/T 5884-1986, GB/T 5885-1986, GB/T 5886-1986, GB/T 5887-1986, GB/T 5888-1986, GB/T 5889-1986 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 5881-2024: Test methods for physical and chemical properties of ramie fiber---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.Test methods for physical and chemical properties of ramie fiber Test methods for physical and chemical properties of ramie ICS 59.060.10 CCS W 30 National Standard of the People's Republic of China Replace GB/T 5881～5889-1986 Released on 2024-07-24 2025-02-01 Implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface ... V 1 Scope ... 1 2 Normative references ... 1 3 Terms and Definitions ... 1 4 Sampling ... 1 4.1 Batch Sample ... 1 4.2 Laboratory samples 2 4.3 Test samples 2 5 Moisture regain and moisture content ... 4 5.1 Principle ... 4 5.2 Instruments and equipment 4 5.3 Test steps 4 5.4 Result calculation and presentation 4 5.5 Test report ... 5 6 Whiteness ... 5 6.1 Principle ... 5 6.2 Instruments and equipment 5 6.3 Test steps 5 6.4 Result calculation and presentation 6 6.5 Test report 6 7 Length ... 6 7.1 Pre-humidification and test standard atmosphere 6 7.2 Instruments and equipment 7 7.3 Test steps 7 7.4 Result calculation and presentation 8 7.5 Test Report 9 8 Line density ... 9 8.1 Principle 9 8.2 Test conditions 9 8.3 Instruments and equipment 9 8.4 Test steps 9 8.5 Result calculation and presentation 10 8.6 Test Report 10 9 Single fiber breaking strength, single fiber breaking elongation ... 11 9.1 Principle 11 9.2 Test conditions 11 9.3 Instruments and equipment 11 9.4 Test steps 11 9.5 Result calculation and presentation 12 9.6 Test Report 13 10 Fiber bundle breaking strength ... 13 10.1 Principle 13 10.2 Test conditions 13 10.3 Instruments and equipment 13 10.4 Test steps 14 10.5 Result calculation and presentation 14 10.6 Test Report 15 11 Quantitative analysis of chemical composition ... 15 11.1 Principle ... 15 11.2 Reagents 15 11.3 Instruments and Equipment ... 16 11.4 Test steps 16 11.5 Result calculation and presentation 17 11.6 Test Report 18 12 Ash content ... 18 12.1 Principle ... 18 12.2 Instruments and Equipment ... 19 12.3 Test steps 19 12.4 Result calculation and presentation 19 12.5 Test Report 19 13 Cellulose degree of polymerization ... 19 13.1 Principle ... 19 13.2 Reagents or Materials 20 13.3 Instruments and Equipment 20 13.4 Test steps 20 13.5 Result calculation and presentation 21 13.6 Test Report 22 14 Rubber content of raw hemp ... 22 14.1 Principle 22 14.2 Reagents 22 14.3 Instruments and Equipment 22 14.4 Test steps 23 14.5 Result calculation and presentation 23 14.6 Test Report 23 15 Residual glue rate of dried hemp ... 23 15.1 Principle 23 15.2 Reagents 23 15.3 Instruments and Equipment 24 15.4 Test steps 24 15.5 Result calculation and presentation 24 15.6 Test Report 24 Appendix A (Normative) Conversion table of ηr and [η]•C for determining the degree of polymerization of ramie cellulose ... 25 References ... 29ForewordThis 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 is required. This document replaces GB/T 5881-1986 "Sampling methods for physicochemical properties of ramie", GB/T 5882-1986 "Breaking strength of ramie bundle fiber" GB/T 5883-1986 "Test method for moisture regain and moisture content of ramie", GB/T 5884-1986 "Test method for count of ramie fiber" GB/T 5885-1986 "Test method for whiteness of ramie fiber", GB/T 5886-1986 "Test method for breaking strength of ramie single fiber" GB/T 5887-1986 "Test method for ramie fiber length", GB/T 5888-1986 "Test method for ramie cellulose polymerization degree", GB/T 5889-1986 "Quantitative analysis method of chemical composition of ramie", GB/T 5881-1986, GB/T 5882-1986, GB/T 5883-1986, GB/T 5884-1986, GB/T 5885-1986, GB/T 5886-1986, GB/T 5887-1986, Compared with GB/T 5888-1986 and GB/T 5889-1986, in addition to structural adjustments and editorial changes, the main technical changes are as follows. Changed the scope (see Chapter 1); a) Added terms and definitions (see Chapter 3); b) The sampling methods and sampling quantity regulations for raw ramie, dried ramie, ramie balls, loose ramie and fallen ramie have been changed, and the sampling Steps (see Chapter 4, Chapter 2, Chapter 3, Chapter 4 and Chapter 5 of the 1986 Edition of GB/T 5881); c) The test method for the sample to reach constant weight condition in the regain and moisture content test was changed, and the sample drying time and value correction were increased. Approximately (see Chapter 5, Chapter 5 of the 1986 edition of GB/T 5883); d) The whiteness test sample preparation method, test times, and sample quality have been changed; the whiteness coefficient of variation calculation formula has been added (see Chapter 6, Chapter 5 and Chapter 6 of GB/T 5885 (1986 edition); e) The length test equipment and parameters, test methods and calculation formulas, result calculation and presentation have been changed (see Chapter 7, 1986 (Chapter 4, Chapter 5 and Chapter 6 of the (2016) GB/T 5887); f) The test method and calculation formula of linear density test have been changed (see Chapter 8, Chapter 5 and Chapter 6 of the 1986 edition of GB/T 5884); g) The equipment and parameters, test method and calculation formula, result calculation and presentation of single fiber breaking strength test have been changed (see Chapter 9, Chapter 4, Chapter 5 and Chapter 6 of GB/T 5886 (1986 Edition); h) The instrument and parameters, test method and calculation formula, result calculation and presentation of the fiber bundle breaking strength test have been changed (see Chapter 10, Chapter 4, Chapter 5 and Chapter 6 of GB/T 5882 (1986 Edition); i) The instrumentation and parameters, test methods and calculation formulas, result calculation and presentation of the chemical composition quantitative analysis method test have been changed. (See Chapter 11, Chapter 4 and Chapter 5 of GB/T 5889 (1986 Edition)); j) The instrument and parameters, test method and calculation formula, result calculation and presentation of fiber polymerization degree test have been changed (see Chapter 13, Chapter 4, Chapter 5 and Chapter 6 of GB/T 5888 (1986 Edition). k) Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Fiber Standardization Technical Committee (SAC/TC 513). This document was drafted by. Hunan Fiber Testing Institute, Sichuan Fiber Inspection Bureau, Donghua University, China Fiber Quality Monitoring Center Sichuan Zitong Linjiang Ramie Textile Co., Ltd., Hubei Fiber Inspection Bureau Xianning Branch, Changde Fiber Quality Monitoring Center, Hunan Huasheng Co., Ltd., Hunan Institute of Engineering, Daqing Branch of Heilongjiang Academy of Sciences. The main drafters of this document are. Hu Xiaorong, Sun Jin, Li Xian, Xu Guiyong, Gan Dan, Shu Guifang, Cao Qiaoli, Zhang Zuo, Zhao Ruifang, Zhang Bin, Du Long, Xiong Haiying, Yu Chongwen, Liu Fang, Chen Lingling, Tang Wenfeng, Chen Wen, Liu Sijie, Gao Shujing, Zhou Hengshu, Yu Danyao, Wu Dahong, Sun Yufeng, and Xiao Xiang. The previous versions of this document and the documents it replaces are as follows. First published in 1986 as GB/T 5881-1986, GB/T 5882-1986, GB/T 5883-1986, GB/T 5884-1986, GB/T 5 8 8 5 - 1 9 8 6, GB/T 5 8 8 6 - 1 9 8 6, GB/T 5 8 8 7 - 1 9 8 6, GB/T 5 8 8 8 - 1 9 8 6. GB/T 5889-1986. This is the first revision. - Test methods for physical and chemical properties of ramie WARNING - Personnel using this document should have practical experience in formal laboratory work. This document does not purport to address all possible safety issues. The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated by relevant national laws and regulations.1 ScopeThis document describes the sampling method of ramie fiber and the regain and moisture content, whiteness, length, linear density, single fiber breaking strength of ramie fiber. strength, single fiber breaking elongation, bundle fiber breaking strength, quantitative analysis of chemical composition, ash content, cellulose polymerization degree, raw hemp rubber content, refined Test methods for physical and chemical properties such as residual rubber rate of dry hemp. This document is applicable to the testing of physical and chemical properties of ramie fibers such as raw ramie, dried ramie, opened ramie, ramie balls, and ramie noil.2 Normative referencesThe contents of the following documents constitute the essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies. in this document. GB/T 1548-2016 Determination of intrinsic viscosity of copper ethylenediamine (CED) solution in pulp GB/T 3291.1-1997 Textiles Textile materials properties and test terms Part 1.Fibres and yarns GB/T 5707-2018 Textiles - Terminology for linen textile products GB/T 6529 Standard atmospheres for conditioning and testing textiles GB/T 6682 Specifications and test methods for water used in analytical laboratories GB/T 8170 Rules for rounding off values and expression and determination of limit values GB/T 20793-2015 Ramie dried flax JJG 512 Verification Procedure for Whiteness Meters3 Terms and definitionsThe terms and definitions defined in GB/T 5707-2018, GB/T 3291.1-1997, GB/T 1548-2016 and the following apply to this document. 3.1 Short velvet flork Ramie fibres with a length of 15 mm or less.4 Sampling4.1 Batch Sample 4.1.1 Raw hemp The sampling quantity is determined by the number of packages in each delivery batch (the same variety, same grade, and same processing technology are considered a batch). Take no less than 5 packages; if there are more than 100 packages, add 1 package for every additional 50 packages. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5881-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 5881-2024_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 5881-2024_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5881-2024_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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