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GB/T 15071-2008 English PDF

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GB/T 15071-2008: Dysprosium metal
Status: Valid

GB/T 15071: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 15071-2008English139 Add to Cart 3 days [Need to translate] Dysprosium metal Valid GB/T 15071-2008
GB/T 15071-1994English199 Add to Cart 2 days [Need to translate] Dysprosium metal Obsolete GB/T 15071-1994

PDF similar to GB/T 15071-2008


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Basic data

Standard ID GB/T 15071-2008 (GB/T15071-2008)
Description (Translated English) Dysprosium metal
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H65
Classification of International Standard 77.120.99
Word Count Estimation 6,664
Date of Issue 2008-03-31
Date of Implementation 2008-09-01
Older Standard (superseded by this standard) GB/T 15071-1994
Quoted Standard GB/T 8170; GB/T 12690; GB/T 14635; GB/T 18115.9
Regulation (derived from) National Standard Approval Announcement 2008 No.5 (Total No.118)
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 for metal dysprosium, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to the direct reduction of calcium and calcium thermal heat master alloys produced by vacuum distillation method and metal dysprosium, mainly for NdFeB alloys and magnetostrictive alloys.

GB/T 15071-2008: Dysprosium metal

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Dysprosium metal ICS 77.120.99 H65 National Standards of People's Republic of China Replacing GB/T 15071-1994 Dysprosium Posted 2008-03-31 2008-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is GB/T 15071-1994 "metal dysprosium" amendments. This standard and GB/T 15071-1994 main changes compared to as follows. --- According to GB/T 17803-1999 "rare earth products grades representation" grade digital representation; --- Cancel the original standard Dy-8 Grades (Dy/RE, 95%); --- Increased 104040 Grade (Dy/RE, 99.99%) and 104 025 Grades (Dy/RE, 99.5%); --- The assessment indicators of certain non-rare earth impurities have been adjusted. This standard was proposed by the National Development and Reform Commission, Office of Rare Earth. This standard by the National Standardization Technical Committee rare. This standard by the Beijing Nonferrous Metal Research Institute, Baotou Rare Earth Research Institute jointly responsible for drafting. This standard by Ganzhou Qiandong Industrial (Group) Co., Ltd., the South of rare earth high-tech Co., Ltd. (Ganzhou Nonferrous Metallurgy Research Institute), Lake Southern Rare Earth Metal Material Research Institute participated in the drafting. The main drafters of this standard. Yangguang Lu, Rui Hong, Li Zongan, Xie Ping, Nam Hung Yao, Du Wen, Weng Guoqing. This standard replaces the standards previously issued as follows. --- GB/T 15071-1994. Dysprosium

1 Scope

This standard specifies the dysprosium metal requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to the direct thermal reduction of calcium and calcium master alloy heat and a vacuum distillation method for the production of dysprosium metal, mainly used for NdFeB Alloys and magnetostrictive alloys.

2 Normative references

The 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 GB/T 14635 (all parts), chemical analysis of rare earth metals and their compounds GB/T 18115.9 rare earth metals and oxides of rare earth impurities in chemical analysis methods and dysprosium lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, Terbium, holmium, erbium, thulium, ytterbium, lutetium and yttrium content

3 Requirements

3.1 Chemical composition Grades and chemical composition shall comply with the requirements in Table 1. Demand side, such products have special requirements, supply and demand sides can be negotiated. 3.2 Appearance 3.2.1 The bulk product is silver-gray metal. 3.2.2 metal surfaces should be clean, no visible inclusions. Table 1 product Trademark Chemical composition (mass fraction) /% REDy/RE impurities, not more than not less than Rare earth impurities/RE non-rare earth impurities Gd Tb Ho Er Y Other rare Soil contaminants Fe Si Ca Mg Al Ni O C Ta (or Nb, Ti, Mo, W) 10,404,099 99.990.0010.0030.0020.0010.0020.0010.010.010.010.010.010.010.040.01 0.01 10,403,599 99.95 combined amount 0.02 0.05 0.020.010.020.010.020.020.050.02 10,403,099 combined amount of 99.9 0.30 0.1 0.050.020.050.030.030.030.250.03 10,402,599 99.5 0.5 0.1 0.03 0.1 combined 0.050.040.050.250.03 0.30 10,402,098 99.0 combined amount 1.0 0.2 0.05 0.1 0.050.050.08 0.3 0.05 0.35

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