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SN/T 3905-2014: Import and export textiles. Qualitative and quantitative analysis. Elastolefin fiber
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SN/T 3905-2014: Import and export textiles. Qualitative and quantitative analysis. Elastolefin fiber

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Import and export textiles. Qualitative and quantitative analysis. Elastolefin fiber People's Republic of China Entry-Exit Inspection and Quarantine Standards Import and export of textile fiber identification and quantitative analysis methods Polyolefin elastic fiber Issued on. 2014-04-09 2014-11-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Yang Juan, Fei Jing, Liu Minhua, Zhang Xiaoming, Wang Weihua, Dong Zhenglian. Import and export of textile fiber identification and quantitative analysis methods Polyolefin elastic fiber

1 Scope

This standard specifies the textile polyolefin elastic fiber qualitative and quantitative analysis methods. This standard applies to the polyolefin single component or two-component mixture comprising a polyolefin elastic fiber elastic fiber qualitative and quantitative analysis.

2 Normative references

The following documents for the application of this document is essential, dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 2910.1-2009 Textiles - Quantitative chemical analysis - Part 1. General principles of testing EU Regulation 1007/2011 concerning labeling of textile fiber names and related labeling and fiber composition of textile products and the abolition of the EU Directive 73/44/EEC, 96/73/EC and 2008/121/EC Regulations [REGULATION (EU) No1007/2011ontextile fibrenamesandrelatedlabelingandmarkingofthefibrecompositionoftextileproductsandrepealing CouncilDirective73/44/EECandDirectives96/73/ECand2008/121/ECoftheEuropeanParliament andoftheCouncil]

3 PRINCIPLE OF THE METHOD

3.1 Qualitative Use of polyolefin elastic fiber in appearance form, solubility, and infrared spectra characteristics of qualitative identification textiles polyolefin elastomer fiber. 3.2 Quantitative The use of elastic polyolefin fibers and other fibers solubility differences in different solutions, to other soluble fibers, elastic polyolefin fibers collected Victoria, washed, dried and weighed to calculate its share of the dry mass of the mixture with a percentage of mass corrected by the difference between the results of other fibers content. NOTE. If you manually separate mixtures fiber components feasible, priority can be manually decomposition. 4 reagents, materials and equipment 4.1 Concentrated sulfuric acid (95% to 98%) of analytically pure. 4.2 sulfuric acid (mass fraction of 75%). 1000mL concentrated sulfuric acid (4.1) slowly added to 570mL of water. 4.3 iodine - potassium iodide coloring solution. 20g of iodine dissolved in a saturated solution of potassium iodide in 100mL. 4.4 distilled or deionized water. 4.5 slide. 4.6 coverslip. ...