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GB/T 8151.9-2012: Methods for chemical analysis of zinc concentrates -- Part 9: Determination of fluorine content -- The ion selective electrode method
Status: Valid GB/T 8151.9: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 8151.9-2012 | English | 139 |
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Methods for chemical analysis of zinc concentrates -- Part 9: Determination of fluorine content -- The ion selective electrode method
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GB/T 8151.9-2012
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| GB/T 8151.9-2000 | English | 199 |
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Methods for chemical analysis of zinc concentrates -Determination of fluorine content
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GB/T 8151.9-2000
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| GB/T 8151.9-1987 | English | RFQ |
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Methods for chemical analysis of zinc concentrates--The ion selective electrode method for the determination of fluorine content
| Obsolete |
GB/T 8151.9-1987
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PDF similar to GB/T 8151.9-2012
Basic data | Standard ID | GB/T 8151.9-2012 (GB/T8151.9-2012) | | Description (Translated English) | Methods for chemical analysis of zinc concentrates -- Part 9: Determination of fluorine content -- The ion selective electrode method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 6,623 | | Older Standard (superseded by this standard) | GB/T 8151.9-2000 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General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 amount of zinc concentrate Determination of fluorine. This section applies to zinc concentrate fluorine content. Measuring range: 0. 050% to 0. 50%. | GB/T 8151.9-2012: Methods for chemical analysis of zinc concentrates -- Part 9: Determination of fluorine content -- The ion selective electrode method
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Methods for chemical analysis of zinc concentrates.Part 9. Determination of fluorine content.The ion selective electrode method
ICS 77.120.60
H13
National Standards of People's Republic of China
Replacing GB/T 8151.9-2000
Methods for chemical analysis of zinc concentrates
Part 9. Determination of the amount of fluorine
Ion Selective Electrode
Part 9. Determinationoffluorinecontent-
Issued on. 2012-12-31
2013-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 8151 "Methods for chemical analysis of zinc concentrates" is divided into 20 parts.
--- Part 1. Determination of the amount of zinc Na2EDTA precipitation titration and extraction separation Na2EDTA titration;
--- Part 2. Determination of sulfur content - Combustion neutralization titration method;
--- Part 3. Determination of iron content Na2EDTA titration;
--- Part 4. Determination of silicon dioxide content - Molybdenum blue spectrophotometric method;
--- Part 5. Determination of lead content by flame atomic absorption spectrometry;
--- Part 6. Determination of copper content - Flame atomic absorption spectrometry;
--- Part 7. Determination of arsenic content by hydride generation - atomic fluorescence spectrometry and potassium bromate titration;
--- Part 8. Determination of cadmium content by flame atomic absorption spectrometry;
--- Part 9. Determination of the amount of fluorine ion selective electrode method;
--- Part 10. Determination of tin content by hydride generation - atomic fluorescence spectrometry;
--- Part 11. Determination of antimony content hydride generation - atomic fluorescence spectrometry;
--- Part 12. Determination of the amount of silver by flame atomic absorption spectrometry;
--- Part 13. Determination of the amount of germanium hydride generation - atomic fluorescence spectroscopy and spectrophotometry Phenylfuoron;
--- Part 14. Determination of nickel content by flame atomic absorption spectrometry;
--- Part 15. Determination of the amount of mercury atomic fluorescence spectrometry;
--- Part 16. Determination of cobalt content by flame atomic absorption spectrometry;
--- Part 17. Determination of the amount of zinc hydroxide precipitation -Na2EDTA titration;
--- Part 18. Determination of the amount of zinc ion exchange -Na2EDTA titration;
--- Part 19. Determination of the amount of gold and silver gray Chuihuo lead analysis or assay and flame atomic absorption spectrometry;
--- Part 20. Copper, lead, iron, arsenic, cadmium, antimony, calcium, magnesium content - Inductively coupled plasma atomic emission spectrometry.
This section GB/T 8151 Part 9.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 8151.9-2000 "Methods for chemical analysis of zinc concentrates - Determination of fluorine content." And GB/T 8151.9-2000
Compared to the main changes are as follows.
--- Text format has been modified;
--- Added 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. MCC Huludao Nonferrous Metals Group Co., Ltd.
This section is drafted. Beijing Mining Research Institute, MCC Huludao Nonferrous Metals Group Co., Ltd.
It participated in the drafting of this section. Daye Nonferrous Metals Group Holdings Co., Ltd., Zhuzhou Smelter Group Co., People's Republic of China
Exit Inspection and Quarantine and the State of Liaoning.
The main drafters of this section. ginger seeking Tao Nguyen Cinnamon, Cao Yan, Zhao Hongyan, Hu Lina, Li Xiaoyu, Wei Wen, Yu Long Yu, Liang Ningning, Li Yan,
Dong Xiuwen.
This part of the standard replaces the previous editions are.
--- GB/T 8151.9-1987, GB/T 8151.9-2000.
Methods for chemical analysis of zinc concentrates
Part 9. Determination of the amount of fluorine
Ion Selective Electrode
1 Scope
This section GB/T 8151 specifies the method for the determination of fluorine content in zinc concentrates.
This section applies to the determination of fluorine in the amount of zinc concentrate. Measurement range. 0.050% to 0.50%.
2 Method summary
Sample decomposition of molten potassium hydroxide with water after leaching the melt filter, separating the fluorine and iron, lead elements, then the solution was adjusted with nitric acid
Acidity, with citric acid ammonium ionic strength adjustment, the use of electrode potential instrument to a saturated calomel electrode as the reference electrode, fluoride ion-selective electrode
Indicator electrode determination of fluorine.
3 Reagents
Unless otherwise indicated, as used in the analysis confirmed that only analytical reagent and distilled water or equivalent purity.
3.1 Potassium hydroxide, pure class distinctions.
3.2 nitric acid (11).
3.3 ammonium citrate solution. Weigh 243g of ammonium citrate, dissolved in about 700mL of water with nitric acid (3.2) adjusted to pH6.0 ~ 6.5, with
Diluted with water to 1000mL, and mix.
3.4 fluoro standard stock solution. Weigh 2.2110g pre-dried at 120 ℃ 2h sodium fluoride (excellent pure), was dissolved in water and go
1000mL volumetric flask, constant volume of water, mix, transferred to drying plastic bottles saved. 1mL solution containing 1mg fluorine.
3.5 fluoro standard solution A. Pipette 50.00mL fluoro standard stock solution (3.4) in 500mL volumetric flask, dilute to the mark, mix
Uniform, moved into dry plastic bottles. This solution 1mL containing 100μg fluorine.
3.6 fluoro standard solution B. Pipette 50.00mL fluoro standard solution (3.5) in 500mL volumetric flask, dilute to the mark, mix, shift
Into dry plastic bottle solution 1mL containing 10μg fluorine.
3.7 bromocresol green indicator. Weigh 0.1g bromocresol green dissolved in 20mL of anhydrous ethanol, dilute with water to 100mL, and mix.
4 Instrument
4.1 FISE. Requires fluorine content in 10-1mol/L ~ 10-5mol/L, the negative electrode potential and the logarithm of the concentration showed a good line
Sexual relations. Electrode before use, should be soaked in a solution of sodium fluoride 10-3mol/L activated in 1h, then washed with water to a fluorine-containing little
In 10-5mol/L only after the measurement.
4.2 saturated calomel electrode.
4.3 potential measurement instrument. accuracy 0.1mV.
4.4 magnetic stirrer.
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