GB/T 16484.12-2009 English PDFUS$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 16484.12-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 12: Determination of sulfate radical Status: Valid GB/T 16484.12: Historical versions
Basic dataStandard ID: GB/T 16484.12-2009 (GB/T16484.12-2009)Description (Translated English): Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 12: Determination of sulfate radical Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: H14 Classification of International Standard: 77.120.99 Word Count Estimation: 10,163 Date of Issue: 2009-09-04 Date of Implementation: 2010-05-01 Older Standard (superseded by this standard): GB/T 16484.12-1996 Regulation (derived from): National Standard Approval Announcement 2009 No.12 (Total No.152) Issuing agency(ies): General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 rare earth chloride, determination of the amount of carbonate, sulfate Light rare earths. This section applies to rare earth chloride, determination of the amount of carbonate, sulfate Light rare earths. Measuring range: 0. 025 to 0. 50%. GB/T 16484.12-2009: Chemical analysis methods of rare earth chloride and light rare earth carbonate -- Part 12: Determination of sulfate radical---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 of rare earth chloride and light rare earth carbonate Part 12. Determination of sulfate radical ICS 77.120.99 H14 National Standards of People's Republic of China Replacing GB/T 16484.12-1996 Earth chloride and light rare earth carbonate chemical analysis methods Part 12. Determination of the amount of sulfate Posted 2009-10-30 2010-05-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordGB/T 16484-2009 "rare earth chloride and light rare earth carbonate chemical analysis method" is divided into 22 parts. --- Part 1. Determination of cerium oxide content of ammonium ferrous sulfate titration; --- Part 2. europium oxide content - Inductively Coupled Plasma Mass Spectrometry; --- Part 3. 15 with a rare earth element oxide component measured by inductively coupled plasma atomic emission spectrometry; --- Part 4. Determination of thorium oxide content arsenazo Ⅲ spectrophotometry; --- Part 5. Determination of barium oxide by inductively coupled plasma atomic emission spectrometry; --- Part 6. Determination of calcium oxide content by flame atomic absorption spectrometry; --- Part 7. Determination of magnesium oxide content - Flame atomic absorption spectrometry; --- Part 8. Determination of the amount of sodium oxide flame atomic absorption spectrometry; --- Part 9. Determination of the amount of nickel oxide by flame atomic absorption spectrometry; --- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry; --- Part 11. Determination of lead oxide content by flame atomic absorption spectrometry; --- Part 12. Determination of the amount of sulfate; --- Part 13. Determination of the amount of ammonium chloride distillation - titration; --- Part 14. Determination of the amount of phosphate phosphorus antimony molybdenum blue spectrophotometric method; --- Part 15. light rare earth carbonate - Determination of the amount of chlorine in the silver nitrate turbidimetry; --- Part 16. rare earth chloride in an amount of water insolubles - Gravimetric method; --- Part 17. Determination of moisture content in rare earth carbonate; --- Part 18. Determination of light rare earth carbonate in the weight loss on ignition method; --- Part 20. nickel oxide, manganese oxide, lead oxide, aluminum oxide, zinc oxide, thorium oxide content - Inductively coupled plasma mass Spectroscopy; --- Part 21. Determination of iron oxide content of 1,10 phenanthroline spectrophotometry; --- Part 22. Determination of the amount of zinc oxide flame atomic absorption spectrometry; --- Part 23. Determination of carbonic acid insoluble light amount of rare earth gravimetric method. This section GB/T Part of 1,216,484. This Part replaces GB/T 16484.12-1996 "rare earth chloride, carbonate, sulfate method of chemical analysis of rare determining the amount." This section compared with the GB/T 16484.12-1996, have the following main changes. --- Original standard uses barium sulfate turbidimetric method, turbidimetric and gravimetric methods adopted as amended; --- Adjust measurement range from 0.025% to 0.50% as nephelometry range 0.025% to 0.50%; Gravimetric range 0.40% - 5.00%; --- Based on the measurement range adjusted sample weight; --- Increasing the precision of the terms; --- Increased quality assurance and control provisions; --- Standard text made editorial changes. In part two methods method for determining the range of 2 to overlap arbitration. This part of the National Standardization Technical Committee rare and centralized. This part by the Beijing Nonferrous Metal Research Institute, China Nonferrous Metals Industry Institute of Standards Metrology and Quality is responsible for drafting. Part 1 from Zibo Jiahua Advanced Material Resources Co. drafted. Method 1 of this section by the Baotou Rare Earth Hi-Tech Company, Beijing Nonferrous Metal Research Institute participated in the drafting. The main drafters of this Part 1. Mo Liu Yan, Wang Linyu. Method 1 of this section participate drafters. Dong Sanli, Wu Guangwei, Zhou Xiaodong, Chen Yun red, Yang Ping. Part 2 of this method from Zibo Jiahua Advanced Material Resources Co. drafted. Method 2 of this section by the Baotou Rare Earth Hi-Tech Company, Beijing Nonferrous Metal Research Institute participated in the drafting. The main drafters of this section Method 2. Mo Liu Yan, Wang Linyu. Method 2 of this section participate drafters. Ma Yongliang, Zhanggui Mei, Dong Sanli, red Chen Yun, Yang Ping. This part of the alternative criteria previously issued as follows. --- GB/T 16484.12-1996. Earth chloride and light rare earth carbonate chemical analysis methods Part 12. Determination of the amount of sulfate Turbidimetric method (Method 1)1 ScopeGB/T 16484 provisions of this part of the determination of rare earth chloride, carbonate, sulfate amount of light rare earths. This section applies to the rare earth carbonate, sulfate amount of light rare earth chloride determination. Measurement range. 0.025% to 0.50%.2 principle of the methodSample was melted anhydrous sodium carbonate, pH adjusted with hydrochloric acid to pH1.5 ~ pH2.0, under conditions in the presence of a stabilizer, and barium sulfate Formation of barium sulfate suspension in a spectrophotometer at 400nm wavelength measured absorbance.3 Reagents3.1 anhydrous sodium carbonate. 3.2 ethanol. 3.3 hydrochloride (ρ1.19g/mL). 3.4 hydrochloric acid (1 + 19). Ammonia 3.5 (1 + 1). 3.6 sodium chloride solution (300g/L). Glycerin 3.7 (1 + 1). 3.8 barium chloride solution (250g/L). 3.9 sulfate standard stock solution. Weigh 1.4786g cooled to room temperature by 110oC and bake in the dryer 1h baseline sodium home In 100mL beaker, add water to dissolve 50mL clear, transferred to 1000mL volumetric flask, dilute with water to volume, and mix. This solution 1mL containing 1mg sulfate. 3.10 sulfate standard solution. Pipette 10.00mL sulfate standard stock solution (3.9), placed in 100mL flask, diluted with water To volume, and mix. This solution 1mL containing 100μg sulfate. 3.11 pairs nitrophenol indicator (1g/L).4 InstrumentSpectrophotometer.5 Sample5.1 Preparation of rare earth chloride sample. A sample was crushed, quickly placed in a weighing bottle immediately weighed. 5.2 Preparation of light rare earth carbonate sample. weigh the sample immediately after the opening. Step 6 Analysis 6.1 Sample Table 1 sample was weighed, accurate to 0.0001g. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 16484.12-2009_English be delivered?Answer: Upon your order, we will start to translate GB/T 16484.12-2009_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 16484.12-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 16484.12-2009_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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