GB/T 3884.5-2012 English PDF

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GB/T 3884.5-2012: Methods for chemical analysis of copper concentrates -- Part 5: Determination of fluoride content -- Ion selective electrode method
Status: Valid

GB/T 3884.5: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 3884.5-2012	169	Add to Cart	3 days	Methods for chemical analysis of copper concentrates -- Part 5: Determination of fluoride content -- Ion selective electrode method	Valid
GB/T 3884.5-2000	199	Add to Cart	2 days	Methods for chemical analysis of copper concentrates Determination of fluorine content	Obsolete
GB/T 3884.5-1983	RFQ	ASK	3 days	Methods for chemical analysis of copper concentrates--The flame atomic absorption spectrophotometric method for the determination of magnesium oxide content	Obsolete

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GB/T 3884.1   GB/T 3884.2   GB/T 4103.14   GB/T 3884.12   GB/T 3884.13   GB/T 3884.14   

Basic data

Standard ID: GB/T 3884.5-2012 (GB/T3884.5-2012)
Description (Translated English): Methods for chemical analysis of copper concentrates -- Part 5: Determination of fluoride content -- Ion selective electrode method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: H13
Classification of International Standard: 77.120.60
Word Count Estimation: 7,751
Older Standard (superseded by this standard): GB/T 3884.5-2000
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 copper Determination of fluorine content. This section applies to the side of the fluorine content in the copper concentrate given method, measuring range: 0. 010% to 0. 50%.

GB/T 3884.5-2012: Methods for chemical analysis of copper concentrates -- Part 5: Determination of fluoride content -- Ion selective electrode method

---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.
ICS77.120.60 H13 National Standards of People's Republic of China Replacing GB/T 3884.5-2000 Methods for chemical analysis of copper concentrates Part 5. Determination of the amount of fluorine Ion Selective Electrode Part 5. Determinationoffluoridecontent- Issued on. 2013-10-01 2012-12-31 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Rules in this section in accordance with GB/T 1.1-2009 given draft. GB/T 3884 "chemical analysis of copper concentrate" is divided into 14 parts. --- Part 1. Determination of copper content iodometry; --- Part 2. Determination of the amount of gold and silver by flame atomic absorption spectroscopy and fire assay; --- Part 3. Determination of sulfur content - Gravimetric and combustion - titration; --- Part 4. Determination of magnesium oxide content - Flame atomic absorption spectrometry; --- Part 5. Determination of the amount of fluorine ion selective electrode method; --- Part 6. Determination by flame atomic lead, zinc, cadmium and nickel absorption spectrometry; --- Part 7. Determination of lead content Na2EDTA titration; --- Part 8. Determination of zinc contents Na2EDTA titration; --- Part 9. Determination of the amount of arsenic and bismuth hydride generation - atomic fluorescence spectrometry, potassium bromate titration and diethyl ammonia Silver group acid spectrophotometry; --- Part 10. Determination of antimony content hydride generation - atomic fluorescence spectrometry; --- Part 11. Determination of mercury content - Cold atomic absorption spectrometry; --- Part 12. Determination of the amount of fluorine and chlorine ion chromatography; --- Part 13. Determination of the amount of copper electrolysis; --- Part 14. Determination of the amount of gold and silver fire assay gravimetric method and atomic absorption spectrometry. This is Part 5. This Part replaces GB/T 3884.5-2000 "Methods for chemical analysis of copper concentrates - Determination of fluorine content", and GB/T 3884.5-2000 "Methods for chemical analysis of copper concentrates - Determination of fluorine content," compared mainly the following changes. --- Text format has been modified; --- Supplementary terms of precision and test reports. The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized. This section is responsible for drafting unit. Daye Nonferrous Metals Group Holdings Limited. This section is drafted. Jiangxi Copper Company Limited. Participated in the drafting of this section. In the mountains of Nonferrous Metals Group Co., Ltd., Beijing General Research Institute of Mining and Metallurgy, Yanggu Yoshimitsu Copper Co., Ltd., Daye Nonferrous Metals Group Holdings Limited. The main drafters of this section. How to Estimate, Qiuji Ying, Luo Zhi, Li Wenqing, Shiyan Xia, Zhang Guanghua, Li Xiaoyu, Wei Wen, Hujun Kai, Li Jing, Jiang Tao demand, Han Xiao, Zhang, and Zhang days. This part of the standard replaces the previous editions are. --- GB/T 3884.6-1983, GB/T 3884.5-2000. Methods for chemical analysis of copper concentrates Part 5. Determination of the amount of fluorine Ion Selective Electrode

1 Scope

This section GB/T 3884 provisions of the determination of fluorine content in copper concentrate. This section applies to the determination of fluorine content in copper concentrate, measurement range. 0.010% to 0.50%.

2 Method summary

Sample melted with sodium hydroxide, extract with water and then melt filtration, fluorine and iron, copper, lead, separation, and the lemon of pH6.5 ~ 7.0 Sodium citrate - triethanolamine medium with a saturated calomel electrode as the reference electrode, fluoride ion selective electrode as indicator electrode, an electrode potential measuring instrument Given fluorine. Determination of the solution, not more than 10mg of aluminum oxide does not interfere with the determination.

3 Reagents

Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 sodium hydroxide, pure class distinctions. 3.2 sodium fluoride, pure class distinctions. 3.3 hydrochloric acid (ρ = 1.19g/mL) 3.4 nitric acid (14). 3.5 Sodium hydroxide solution (0.05mol/L). 3.6 sodium citrate (Na3C6H5O7 · 2H2O) solution (294g/L). 3.7 Triethanolamine [N (CH2CH2OH) 3] solution. 100mL 64mL triethanolamine hydrochloride (3.3) was adjusted to pH6.5 ~ 7.0, with Diluted with water to 500mL, and mix. 3.8 fluoro standard stock solution. Weigh 2.2110g dried at 120 ℃ 2h NaF (3.2), with water to dissolve and transferred to 500mL capacity Bottle diluted with water to the mark, mix and transferred to dry plastic bottle for storage. This solution 1mL containing 2mg fluorine. 3.9 fluoro standard solution. Pipette 25.00mL fluoro standard stock solution (3.8) in 500mL volumetric flask, dilute to the mark, mix, Moved into dry plastic bottles. This solution 1mL containing 100μg fluorine. 3.10 fluoro standard solution. Pipette 50.00mL fluoro standard solution (3.9) in 500mL volumetric flask, dilute with water to volume, and mix immediately Into dry plastic bottles. This solution 1mL containing 10μg fluorine. 3.11 Phenol red solution (2g/L). Weigh 0.1g of phenol red, 6mL was added sodium hydroxide solution (3.5), diluted with water to 50mL, Mix well.

4 Instrument

4.1 FISE. Requires fluorine content in 10-1mol/L ~ 10-6mol/L concentration, the negative electrode potential and the logarithm of the concentration was good ......

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