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GB/T 8151.18-2012: Methods for chemical analysis of zinc concentrates -- Part 18: Determination of zinc content -- Ion-exchange/Na2EDTA titrimetric method
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Methods for chemical analysis of zinc concentrates -- Part 18: Determination of zinc content -- Ion-exchange/Na2EDTA titrimetric method
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GB/T 8151.18-2012
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Basic data | Standard ID | GB/T 8151.18-2012 (GB/T8151.18-2012) | | Description (Translated English) | Methods for chemical analysis of zinc concentrates -- Part 18: Determination of zinc content -- Ion-exchange/Na2EDTA titrimetric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H13 | | Classification of International Standard | 77.120.60 | | Word Count Estimation | 22,240 | | Quoted Standard | ISO 385; ISO 648; ISO 1042; ISO 3696; ISO 4787; ISO 9599 | | Adopted Standard | ISO 12739-2006, IDT | | 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 zinc sulfide concentrates Determination of zinc content. This section applies to the amount of zinc sulfide concentrates Determination Measuring range: 11. 00% ~ 62. 00%. | GB/T 8151.18-2012: Methods for chemical analysis of zinc concentrates -- Part 18: Determination of zinc content -- Ion-exchange/Na2EDTA titrimetric 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
GB/T 8151.18-2012/ISO 12739.2006
Methods for chemical analysis of zinc concentrates
Part 18. Determination of zinc contents
Ion exchange titration -Na2EDTA
Part 18. Determinationofzinccontent-
(ISO 12739.2006, Zincsulfideconcentrates-
Ion-exchange/EDTAtitrimetricmethod, IDT)
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
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 - 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 - 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 lead analysis or gray Chuihuo assay and gold and silver by flame atomic absorption spectrometric method;
--- Part 20. Copper, lead, iron, arsenic, cadmium, antimony, calcium, magnesium content - Inductively coupled plasma atomic emission spectrometry.
This is Part 18 GB/T 8151's.
Rules in this section in accordance with GB/T 1.1-2009 given draft.
This section identical with ISO 12739.2006 "zinc sulfide concentrates - Determination of the amount of ion exchange/EDTA titration."
This part of ISO 12739.2006 main differences are as follows.
--- With a decimal point instead of as a decimal in the international standards ",". ",";
--- With a period instead of a full stop in the international standard. "". "";
--- With "this Part" instead of the "standard";
--- According to Chinese customary change the standard name;
--- Remove the cover of international standards, Contents, Foreword.
The non-ferrous metal part by the National Standardization Technical Committee (SAC/TC243) centralized.
This section drafted by. MCC Huludao Nonferrous Metals Group Co., Ltd., China Nonferrous Metals Industry Institute of Standards and Metrology and Quality.
The main drafters of this section. Lawrence Lee, Liu Limin, Zhao Junfeng.
GB/T 8151.18-2012/ISO 12739.2006
Methods for chemical analysis of zinc concentrates
Part 18. Determination of zinc contents
Ion exchange titration -Na2EDTA
1 Scope
This section GB/T 8151 provisions of the determination of the amount of zinc sulfide concentrates.
This section applies to the determination of the amount of zinc sulfide concentrate measurement range. 11.00% - 62.00%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including all repair orders) applies to this document.
ISO 385 Laboratory Glassware Buret (Laboratoryglassware-Burettes)
ISO 648 single laboratory glassware graduated pipettes (Laboratoryglassware-One-markpipettes)
ISO 1042 single scale laboratory glassware volumetric flask (Laboratoryglassware-One-markvolumetric
flasks)
Water specifications and test methods (Waterforanalyticallaboratoryuse-Specification ISO 3696 laboratory analysis
andtestmethods)
ISO 4787 laboratory glassware containers test capacity and capacity use (Laboratoryglassware-
Volumetricglassware-Methodsforuseandtestingofcapacity)
ISO 9599 sulfide copper, lead and zinc concentrates hygroscopic moisture - Gravimetric method (Copper, leadandzincsulfideconcen-
trates-Determinationofhygroscopicmoistureintheanalysissample-Gravimetricmethod)
3 Method summary
Sample was dissolved in hydrochloric acid, nitric acid and sulfuric acid. Hydrochloric acid concentration of about 2mol/L, zinc is a strong base anion exchange resin, under conditions
Other interfering ions are separated and removed with ammonia - ammonium chloride solution and the zinc eluting with xylenol orange as indicator, under the conditions at a pH of about 5.6
Na2EDTA titration with standard solution titration elution amount of zinc.
4 Reagents
Analysis, use only approved analytical reagent water standards and in accordance with ISO 3696 two of water.
4.1 Zinc metal (wZn≥99.99%). using zinc oxide-free surface before immersing the surface with hydrochloric acid (4.3) was diluted to (19) was.
Cleaning 1min, then washed with water, rinsed with acetone, and dried in an oven at 50 deg.] C.
4.2 xylenol orange indicator (0.1%). 0.1g of salt crystals mixed xylenol orange and 100g of potassium nitrate, used in ceramic mortar and pestle light
Light grinding, mixing to exactly the same color.
4.3 hydrochloride (ρ201.16g/mL ~ 1.19g/mL).
4.4 hydrochloride (11). A 500mL of hydrochloric acid (4.3) was added to 500mL of water.
GB/T 8151.18-2012/ISO 12739.2006
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