GB/T 23590-2009 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 23590-2009: Praseodymium-neodymium fluoride Status: Valid
Basic dataStandard ID: GB/T 23590-2009 (GB/T23590-2009)Description (Translated English): Praseodymium-neodymium fluoride Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H65 Classification of International Standard: 77.120.99 Word Count Estimation: 8,833 Date of Issue: 2009-04-23 Date of Implementation: 2010-02-01 Regulation (derived from): National Standard Approval Announcement 2009 No.5 (Total No.145) 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 requirements neodymium praseodymium fluoride products, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to the chemical method were praseodymium fluoride neodymium, praseodymium, neodymium alloy for production, rare earth materials used. GB/T 23590-2009: Praseodymium-neodymium fluoride---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.Praseodymium-neodymium fluoride ICS 77.120.99 H65 National Standards of People's Republic of China Neodymium praseodymium fluoride Posted 2009-04-23 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard by the National Standardization Technical Committee rare and centralized. This standard by the Baotou Rare Earth Research Institute is responsible for drafting. This standard by the Hunan Institute of rare earth materials in the drafting. The main drafters of this standard. Rui Hong, JU Jian-yong, Xu Tao, Xie Ping, in Ya-chiao, Yinzu Ping, Weng Guoqing. Neodymium praseodymium fluoride1 ScopeThis standard specifies requirements for neodymium praseodymium fluoride products, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to chemical method was fluorinated praseodymium, neodymium, praseodymium, neodymium alloy for the production of rare earth materials used.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 numerical rounding rules GB/T 12690 (all parts), oxides of rare earth metals and their chemical impurity analysis of Central Africa Determination of GB/T 14635 method for chemical analysis of rare earth metals and rare earth compound total3 Requirements3.1 Chemical composition Chemical composition of the product shall comply with the requirements in Table 1. Demand side, such products have special requirements, negotiated by both parties to resolve. Table 1 product Trademark Chemical composition (mass fraction) /% REO, not less than F, not less than Nd2O3 / REO Pr6O11 / REO Impurity content of not more than Non-rare earth impurities in rare earth impurities La2O3 CeO2 Sm2O3 Y2O3 Fe2O3 SiO2 CaO Al2O3 Cl- Moisture /% no greater than 042080 82 27 80 ± 2 20 ± 2 0.1 0.1 0.05 0.05 0.2 0.07 0.05 0.1 0.05 042075 82 27 75 ± 2 25 ± 2 0.1 0.1 0.05 0.05 0.2 0.07 0.05 0.1 0.05 042070 82 27 70 ± 2 30 ± 2 0.1 0.1 0.05 0.05 0.2 0.07 0.05 0.1 0.05 0.8 3.2 Appearance 3.2.1 product as a light pink powder. 3.2.2 The product should be clean, no visible inclusions. Test Method 4 4.1 Analysis of total rare earth oxides according to the provisions of GB/T 14635 performed. 4.2 fluorine, praseodymium oxide, neodymium, moisture content and analysis methods of rare earth impurities by the method of supply and demand will be negotiated. 4.3 Non-analysis methods of rare earth impurities in accordance with the requirements GB/T 12690 of. 4.4 rounding off according to the provisions of GB/T 8170 will be. 4.5 Appearance by visual inspection.5 Inspection Rules5.1 inspection and acceptance 5.1.1 product by the supplier quality inspection department checks to ensure product quality in line with the provisions of this standard, and fill in the quality certificate. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 23590-2009_English be delivered?Answer: Upon your order, we will start to translate GB/T 23590-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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