SN/T 2194-2008 English PDFUS$239.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. SN/T 2194-2008: Textile. Polylactic acid fibre mixtures. Quantitative chemical analysis Status: Valid
Basic dataStandard ID: SN/T 2194-2008 (SN/T2194-2008)Description (Translated English): Textile. Polylactic acid fibre mixtures. Quantitative chemical analysis Sector / Industry: Commodity Inspection Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.01 Word Count Estimation: 9,912 Date of Issue: 2008-11-18 Date of Implementation: 2009-06-01 Quoted Standard: GB/T 8170 Regulation (derived from): National Quality Inspection [2008] No. 577 Issuing agency(ies): General Administration of Customs Summary: This standard specifies the use of polylactic acid dissolution method for the determination of each component in fiber blends quantitative analysis method. This standard applies to polylactic acid fibers containing binary textile fiber mixtures and quantitative analysis of mixed products. SN/T 2194-2008: Textile. Polylactic acid fibre mixtures. Quantitative chemical analysis---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.Textile.Polylactic acid fibre mixtures.Quantitative chemical analysis Exit inspection and quarantine industry standard book People's Republic of China Polylactic acid textile fiber mixtures Quantitative chemical analysis Posted 2008-11-18 2009-06-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released ForewordThis standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China, Ningbo Entry-Exit Inspection and Quarantine of Jiangsu People's Republic of China Bureau of Donghua University. The main drafters of this standard. Fuke Jie, Yang Lisheng, Caoxi Zhong Min Jie, Li Zhengrong, Zhu Min. This standard is the first release of the entry-exit inspection and quarantine industry standards. Polylactic acid textile fiber mixtures Quantitative chemical analysis1 ScopeThis standard specifies the method for quantitative analysis of PLA fiber blended products of each component was determined by dissolution method. This standard applies to the quantitative analysis of polylactic acid-containing fibers and blends of binary textile fiber products intertwined.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 8170 Revised figures indicate about the rules and limit values and judgment3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 Also known as polylactide fibers, mainly made by the polymerization of lactic acid monomer, wherein the lactate units (by volume) in the molecule content greater than or equal At 85%, the melting point of the polymer fiber molecule not less than 135 ℃. Principle 4 Component blended products after qualitative identification, select the appropriate reagents dissolved and removed one of the components, the insoluble fiber washing, drying, cold But, weighing, calculate the percentage content of each component.5 ReagentsThe reagents used are chemically pure. Testing workers should have good skills test, while the test place to wear safety prevention Nursing supplies. All chemicals are likely to cause some damage to the human body, it needs to be handled with care. 5.1 distilled or deionized water. 5.2 petroleum ether, distillation range 40 ℃ ~ 60 ℃. 5.3 dichloromethane. 5.4 75% (mass fraction) sulfuric acid. 1000mL concentrated sulfuric acid (density 1.84g/mL) was slowly added to 570mL of water, sulfuric acid concentration control Prepared in 73% to 77% (by mass) range. 5.5 80% (mass fraction) of formic acid. 880mL90% formic acid (density 1.204g/mL) was diluted with water to 1L, formic acid concentration at 77% to 83% (by mass) range. 5.6 Dilute ammonia solution. 40mL ammonia (density 0.880g/mL) was diluted with water to 1L.6 Instruments6.1 Soxhlet extractor. 6.2 constant temperature water bath. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of SN/T 2194-2008_English be delivered?Answer: Upon your order, we will start to translate SN/T 2194-2008_English as soon as possible, and keep you informed of the progress. 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