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SN/T 4829-2017 English PDF

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SN/T 4829-2017: Import and export textiles. Quantitative analysis. Solubility. Mixtures of lyocell and other regenerated cellulose fibers
Status: Valid
Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
SN/T 4829-2017229 Add to Cart 3 days Import and export textiles. Quantitative analysis. Solubility. Mixtures of lyocell and other regenerated cellulose fibers Valid

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Basic data

Standard ID: SN/T 4829-2017 (SN/T4829-2017)
Description (Translated English): Import and export textiles. Quantitative analysis. Solubility. Mixtures of lyocell and other regenerated cellulose fibers
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: W50
Word Count Estimation: 10,171
Date of Issue: 2017-07-21
Date of Implementation: 2018-03-01
Regulation (derived from): National Quality Inspection (2017) No. 337
Issuing agency(ies): General Administration of Customs

SN/T 4829-2017: Import and export textiles. Quantitative analysis. Solubility. Mixtures of lyocell and other regenerated cellulose fibers


---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.
(Import and export of textile fiber Quantitative analysis Dissolution method Lacey and other regenerated cellulose fiber blended products) People's Republic of China entry and exit inspection and quarantine industry standards Import and export textile fiber quantitative analysis dissolution method Lyocell and other regenerated cellulose fiber blended products Released on.2017-07-21 2018-03-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued Entry-Exit Inspection and Quarantine Industry Standard Import and export textile fiber quantitative analysis dissolution method Lyocell and other regenerated cellulose fiber blended products China Standard Press Publishing First edition, May.2018

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Hebei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Liu Jinrui, Zhang Xiangli, Zhao Sumin, Gao Youjun, Chen Baoxi, Dong Yanan, Shang Xueying, Wang Wenli, Sun Lixia. Import and export textile fiber quantitative analysis dissolution method Lyocell and other regenerated cellulose fiber blended products Caution - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security questions. question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions set by the relevant national regulations.

1 Scope

This standard specifies the formic acid/zinc chloride method for the determination of two components of lyocell fiber and other regenerated cellulose fibers after removal of non-fibrous materials. Method of mixture content. This standard applies to the blended products of lyocell A100 fiber and lyocell G100 fiber, viscose fiber and bamboo pulp fiber.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 2910.1 Textiles - Quantitative chemical analysis - Part 1. General rules GB/T 6682 Analytical laboratory water specifications and test methods GB/T 8170 Digital Rounding Rules and Representation and Determination of Limit Values GB/T 9994 textile material official moisture regain GB/T 10629 Textiles for the preparation of laboratory samples and samples for chemical testing

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Lyocell G100 fiber lyocelG100 A cellulose fiber obtained by a spinning process using an organic solvent [N-methylmorpholine-N-oxide (NMMO)] using wood pulp as a raw material. Note. Usually referred to as ordinary lyocell fiber or lyocell G100 fiber. 3.2 Lyocell A100 fiber lyocelA100 In the ordinary lyocell fiber production process, a cross-linking agent treatment process was added to obtain a lyocell fiber.

4 Principle

Dissolving regenerated cellulose fibers other than lyocell A100 fibers from a mixture of known dry masses with formic acid/zinc chloride solution After removal, the remaining lyocell A100 fibers were collected, washed, dried and weighed to calculate the percentage of the dry mass of the mixture. Poor It is worth the quality fraction of lyocell G100 fiber, viscose fiber and bamboo pulp fiber.
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