GB/T 33269-2016 English PDFUS$199.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33269-2016: Textiles -- Polyester mixtures quantitative analysis -- Nuclear magnetic resonance spectroscopy method Status: Valid
Basic dataStandard ID: GB/T 33269-2016 (GB/T33269-2016)Description (Translated English): Textiles -- Polyester mixtures quantitative analysis -- Nuclear magnetic resonance spectroscopy method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: W04 Classification of International Standard: 59.080.01 Word Count Estimation: 10,133 Date of Issue: 2016-12-13 Date of Implementation: 2017-07-01 Regulation (derived from): National Standard Announcement No.209 of 2016 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China GB/T 33269-2016: Textiles -- Polyester mixtures quantitative analysis -- Nuclear magnetic resonance spectroscopy method---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. Textiles - Polyesterstation quantitative analysis - Nuclear magentic resonance spectroscopy method ICS 59.080.01 W04 National Standards of People's Republic of China Quantitative Analysis of Textile Polyester Fiber Mixture Nuclear magnetic resonance method 2016-12-13 released 2017-07-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released ForewordThis standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by China Textile Industry Federation. This standard is under the jurisdiction of the National Textile Standardization Technical Committee (SAC/TC209). The drafting of this standard. Shanghai Ma Ma Textile Science and Technology Research Institute. The main drafters of this standard. Zhu Qingfang, Shi Yi, Chen Jie, Zhang Yi, Chen Yang, Shao Zonghao, Shen Meihua. Quantitative Analysis of Textile Polyester Fiber Mixture Nuclear magnetic resonance method1 ScopeThis standard specifies the use of nuclear magnetic resonance determination of polyethylene terephthalate fiber (PET), polytrimethylene terephthalate fiber (PTT), polybutylene terephthalate fiber (PBT) three different polyester mixture fiber content method. This standard applies to textiles containing polyester fibers.2 normative reference documentsThe following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 2910 (all parts) Quantitative chemical analysis of textiles3 principleThe polyester fiber mixture was dissolved by a mixed reagent of deuterated trifluoroacetic acid and deuterated chloroform and subjected to 1H NMR spectroscopy, The chemical shift and peak area of the 1H absorption peak in different chemical environments were qualitatively and quantitatively analyzed for PET, PTT and PBT.4 instruments and reagents4.1 nuclear magnetic resonance spectrometer. not less than 400MHz, with 1H probe. 4.2 Analysis of the balance. accuracy of 0.2mg. 4.3 deuterated chloroform and deuterated trifluoroacetic acid mixed reagent. volume ratio of 5. 1, pure spectrum. WARNING. This reagent is hazardous to the human body and should be used with adequate protection. 4.4 NMR tubes. 5 mm.5 test steps5.1 Dissolve and remove non-polyester fibers according to GB/T 2910. 5.2 Take about 15mg (if the sample is not uniform, can increase the amount of sample) polyester fiber samples, with 1mL deuterated chloroform and deuterated trifluoroacetic acid mixed The reagent (4.3) was sufficiently dissolved at room temperature and transferred to a 5 mm NMR tube (4.4). In 1 h, with nuclear magnetic resonance spectroscopy (4.1) The 1H spectrum was measured at room temperature. The scanning width was 8000Hz, the number of scans was 64, the relaxation time was 1s and the acquisition time was 5s.6 Results analysis6.1 Qualitative analysis The 1HNMR spectra were analyzed, and the PET, PTT and PBT in the samples were qualitatively determined by the number of absorption peaks and the chemical shift values of the hydrogen atoms ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33269-2016_English be delivered?Answer: Upon your order, we will start to translate GB/T 33269-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 33269-2016_English with my colleagues?Answer: Yes. 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