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GB/T 12690.5-2017 English PDF

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GB/T 12690.5-2017: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Part 5: Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron contents
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GB/T 12690.5: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 12690.5-2017English178 Add to Cart 1 days [Need to translate] Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Part 5: Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron contents Valid GB/T 12690.5-2017
GB/T 12690.5-2003English559 Add to Cart 3 days [Need to translate] Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Determination of Al, Cr, Mn, Fe, Co, Ni, Cu, Zn, Pb content by inductively coupled plasma atomic emission spectrographic method and Determination of Co, Mn, P Obsolete GB/T 12690.5-2003
GB/T 12690.5-1990English199 Add to Cart 2 days [Need to translate] Praseodymium oxide--Determination of lanthanum oxide, cerium oxide, neodymium oxide, samarium oxide and yttrium oxide contents--X ray fluorescence spectrometric method Obsolete GB/T 12690.5-1990

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Basic data

Standard ID GB/T 12690.5-2017 (GB/T12690.5-2017)
Description (Translated English) Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Part 5: Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron contents
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H14
Classification of International Standard 77.120.99
Word Count Estimation 18,128
Date of Issue 2017-10-14
Date of Implementation 2018-02-01
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 12690.5-2017: Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides -- Part 5: Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron contents



---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.
Chemical analysis methods for non-rare earth impurities of rare earth metals and their oxides - Part 5. Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron contents ICS 77.120.99 H14 National Standards of People's Republic of China Replacing GB/T 12690.5-2003 Non-rare earth impurities in rare earth metals and their oxides Chemical analysis methods Part 5. Cobalt, manganese, lead, nickel, copper, zinc, aluminum, Determination of chromium, magnesium, cadmium, vanadium and iron Chemicalanalysis methods for non-rareearthimpuritiesofraarthstonealsand theiroxides-Part 5.Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadiumandironcontents 2017-10-14 Release.2018-02-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

GB/T 12690 "rare earth metals and oxides non-rare earth impurities chemical analysis method" is divided into 18 parts. --- Part 1. Determination of carbon, sulfur content High-frequency - infrared absorption method; --- Part 2. Determination of ignition loss in rare earth oxides gravimetric method; --- Part 3. Determination of water content in rare earth oxides gravimetric method; --- Part 4. Determination of oxygen and nitrogen content Pulsed - infrared absorption and pulse - thermal conductivity method; --- Part 5. Determination of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium and iron content; --- Part 6. Determination of iron content potassium thiocyanate, 1,10-phenanthroline spectrophotometry; --- Part 7. Determination of silicon content molybdenum blue spectrophotometry; --- Part 8. Determination of sodium content; Flame atomic absorption spectrometry; --- Part 9. Determination of chlorine content silver nitrate turbidimetric method; --- Part 10. Determination of phosphorus content molybdenum blue spectrophotometry; --- Part 11. Determination of magnesium content by flame atomic absorption spectrometry; --- Part 12. Determination of thorium content; --- Part 13. Determination of molybdenum and tungsten content; --- Part 14. Determination of titanium content; --- Part 15. Determination of calcium content; --- Part 16. Determination of fluorine content ion selective electrode method; --- Part 17. Determination of niobium and tantalum in rare earth metals; --- Part 18. Determination of zirconium content. This section GB/T 12690 Part 5. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 12690.5-2003 "rare earth metals and oxides non-rare earth impurities chemical analysis methods aluminum, chromium, manganese, Determination of Iron, Cobalt, Nickel, Copper, Zinc and Lead by Inductively Coupled Plasma Atomic Emission Spectrometry (Method 1) Measurement of Cobalt, Manganese, Lead, Nickel, Copper, Zinc, Aluminum and Chromium Fixed Inductively Coupled Plasma Mass Spectrometry (Method 2) ". This section compared with GB/T 12690.5-2003, in addition to editorial changes outside the main technical changes are as follows. --- Expand the scope of the method 1, an increase of magnesium (Mg), cadmium (Cd), vanadium (V) content of the determination (see Table 1); --- Modify the method of part of the lower part of the determination of the scope of the element, in which the determination of aluminum (Al) lower limit of 0.010% to 0.0010%, chromium (Cr), iron (Fe), nickel (Ni), lead (Pb) was changed from 0.0050% to 0.0010%, the determination of cobalt and copper The lower limit is changed from 0.0020% to 0.0010% (see Table 1). --- Added the method of analysis of some of the elements of the spectrum, including praseodymium (Pr), samarium (Sm), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium Non-rare earth impurities in Er, Tm, Yb and Lu are shown in Table 5; --- Modify the method of measuring the concentration of the element under test (see 2.5.4.3); --- Increased method 2 magnesium (Mg), cadmium (Cd), vanadium (V) determination (see Table 2); --- Modify the method of some elements of the lower limit of 2, in which lead (Pb), nickel (Ni) lower limit of determination from 0.0002% to 0.0001% The lower limit of determination of zinc (Zn) and aluminum (Al) was changed from 0.0005% to 0.0003%, and the lower limit of determination of chromium (Cr) was changed from 0.0005% to 0.0001% (see Table 2). This part of the National Rare Earth Standardization Technical Committee (SAC/TC229) and focal point. This part of the drafting unit. Qigong Rare Earth Group Co., Ltd., Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Standard Quantity Quality Institute, Ganzhou Ecclestone Detection Technology Co., Ltd., Jiangyin Jiahua New Materials Resources Co., Ltd., Baotou Rare Earth Research Institute, Yixing new Willis into Rare Earth Co., Ltd., Dingnan Dahua New Materials Resources Co., Ltd., the State Tungsten and Rare Earth Quality Supervision and Inspection Center. The main drafters of this section. Yao Nanhong, Bao Yelin, Wen Bin, Liu Pengyu, Qi Shengping, Liu Bing, Ni Juhua, Liu Zhuying, Li Xiaojun, Zhu Xu Lei, Huang Nansheng, Wang Shouhong, Zhang Zhixin, Bao Xiangchun, Xu Na, Chen Wen. This part replaces the standards previously issued as. --- GB/T 8762.4-1988, GB/T 8762.6-1988; --- GB/T 11074.4-1989; --- GB/T 12690.14-1990, GB/T 12690.19-1990, GB/T 12690.24-1990; --- GB/T 12690.5-2003. Non-rare earth impurities in rare earth metals and their oxides Chemical analysis methods Part 5. Cobalt, manganese, lead, nickel, copper, zinc, aluminum, Determination of chromium, magnesium, cadmium, vanadium and iron

1 Scope

GB/T 12690 provisions of this part of cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium, iron content of rare earth metals and their oxidation Oxides of cobalt, manganese oxide, lead oxide, nickel oxide, copper oxide, zinc oxide, aluminum oxide, chromium oxide, magnesium oxide, cadmium oxide, vanadium oxide, iron oxide Determination of content. This section applies to cobalt, manganese, lead, nickel, copper, zinc, aluminum, chromium, magnesium, cadmium, vanadium, iron content and oxides of rare earth metals cobalt oxide, oxidation Determination of manganese, lead oxide, nickel oxide, copper oxide, zinc oxide, aluminum oxide, chromium oxide, magnesium oxide, cadmium oxide, vanadium oxide, iron oxide content. Total package Two methods are included. Method 1 Inductively coupled plasma atomic emission spectrometry, Method 2 Inductively coupled plasma mass spectrometry. Method 1 Measurement range See Table 1, Method 2 determination range in Table 2. Table 1 Oxide measurement range (mass fraction) /% Oxide measurement range (mass fraction) /% Cobalt oxide 0.0010 to 0.10 Alumina 0.0010 to 0.10 Manganese oxide 0.0010 to 0.10 Chromium oxide 0.0010 to 0.10 Lead oxide 0.0010 to 0.10 Magnesium oxide 0.0002 to 0.10 Nickel oxide 0.0010 to 0.10 Cadmium oxide 0.0010 to 0.10 Copper oxide 0.0010 to 0.10 Vanadium oxide 0.0010 to 0.10 Zinc oxide 0.0010 to 0.10 Iron oxide 0.0010 to 0.50 Table 2 Oxide measurement range (mass fraction) /% Oxide measurement range (mass fraction) /% Cobalt oxide 0.0001 to 0.050 Alumina 0.0003 to 0.050 Manganese oxide 0.0001 to 0.050 Chromium oxide 0.0001 to 0.050 Lead oxide 0.0001-0.050 Magnesia 0.0001-0.050 Nickel oxide 0.0001 to 0.050 Cadmium oxide 0.0001 to 0.050 Copper oxide 0.0001 to 0.050 Vanadium oxide 0.0001 to 0.050 Zinc oxide 0.0003 to 0.050 - - 2 Methods 1. Inductively coupled plasma atomic emission spectrometry 2.1 method principle The sample was dissolved in nitric acid, excited in a dilute nitric acid medium by an argon plasma light source, and subjected to spectrometry.

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