GB/T 29305-2012 English PDFUS$394.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 29305-2012: Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials Status: Valid
Basic dataStandard ID: GB/T 29305-2012 (GB/T29305-2012)Description (Translated English): Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: K15 Classification of International Standard: 29.035.01 Word Count Estimation: 20,266 Quoted Standard: IEC 60814; ISO 287; ISO 3105 Adopted Standard: IEC 60450-2004/Amd 1-2007, IDT Regulation (derived from): National Standards Bulletin No. 41 of 2012 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 Summary: This standard specifies the kind of new and aged cellulosic electrically insulating materials viscosity average degree of polymerization (DP) measurement standard method. This standard applies to all cellulosic insulation materials, such as transformers, GB/T 29305-2012: Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials---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. Measurement of the average viscometric degree of polymerization of new and aged cellulosic electrically insulating materials ICS 29.035.01 K15 National Standards of People's Republic of China New and aged cellulosic electrically insulating materials Measuring the viscosity average degree of polymerization (IEC 60450.2004 Al.2007, IDT) Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsPreface Ⅰ Introduction Ⅱ 1 Scope 1 2 Normative references 1 3 Terms and definitions, symbols 1 4 Principle 3 5 Equipment and Reagent 3 Sample 4 6 7 Test Step 4 8 Test Report 8 Appendix A (normative) copper ethylene diamine solution 10 Preparation (normative) copper ethylene diamine Appendix B 11 Annex C (normative) copper ethylene diamine solution cEn cCu Ratio calibration procedure 13 Annex D (informative) function according to Martin equation [ν] · c multiplied νs Table 14 References 15ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard uses the translation method identical with IEC 60450.2004 A1.2007 "New and cellulosic electrically insulating material sticky after aging Average degree of polymerization of the measure. " Consistency correspondence with this standard Normative documents of the following documents. --- GB/T 462-2008 paper, board and pulp - Determination of water samples (ISO 287. 1985, MOD) The standard proposed by China Electrical Equipment Industrial Association. This standard by the National Electrical insulation materials and insulation systems assessment Standardization Technical Committee (SAC/TC301) centralized. Participated in the drafting of this standard. Suzhou Jufeng Electrical Insulation Systems Co., Ltd., Beijing Electrical Machinery Industry Technology Research Institute of Economy, Shenzhen City, measuring Detection Technology Co., Ltd., Shanghai Electric Equipment detection. The main drafters of this standard. Wang, Xia Yu, Liu Yali, Liu Shufen, Guo Bing, Sun Huashan, ZHAO Chao, Guo Liping.IntroductionExperience has shown the need to improve test methods and new cellulosic electrically insulating material sticky after aging average degree of polymerization may be repeated speculation. This standard applies to oxidative degradation in the processing stage and outflow generated. Another important factor is the need to ensure that the materials used to dissolve And it is used, which is accelerated outflow. New and aged cellulosic electrically insulating materials Measuring the viscosity average degree of polymerization1 ScopeThis standard specifies a new electrical insulating materials and cellulose sticky after aging average degree of polymerization to standard methods (DPν) measurements. This standard applies to all cellulose insulation, cellulose insulation such as transformers, cables, capacitors and other products used. Test methods described in this standard also applies to after chemical modification can be completely dissolved in the solvent selection kraft intrinsic viscosity measurement. The test method described in this standard when glazed kraft paper for caution. Note. For a sample material, the degree of polymerization of the cellulose molecule is not the same, so the average degree of polymerization as measured by the viscosity may be related by other methods (such as Osmosis or ultra-centrifugation) different values \u200b\u200bmeasured.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. The water content of the oil insulating liquid IEC 60814 Paper and board Determination by Karl Fischer titration with automatic power (Insulatingliquids-Oil-impregnatedpaperandpressboard-Determinationofwaterbyautomatic coulometricKarlFischertitration) ISO 287 paper, board and pulp - Determination of water samples for analysis (Paperandboard-Determinationofmoisture content-Oven-dryingmethod) ISO 3105 glass capillary kinematic viscosity specifications and operating instructions (Glasscapilarykinematicviscometers-Spec- ificationsandoperatinginstructions) 3 Terms and definitions, symbols The following terms and definitions, symbols apply to this document. 3.1 Terms and Definitions 3.1.1 Degree of polymerization of the cellulose molecule degreeofpolymerizationofacelulosemolecule Cellulose molecules of anhydrous glucose monomers number -β- (C6H10O5) is. Note. Figure 1 shows the chemical formula of the cellulose molecule.1 cellulose molecule chemical structural formula diagram......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 29305-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 29305-2012_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 29305-2012_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 29305-2012_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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