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GB/T 14353.7-2010 | English | 189 |
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Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 7: Determination of arsenic content
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GB/T 14353.7-2010
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GB/T 14353.7-1993 | English | 199 |
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Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of arsenic content. Silver diethyl-dithiocarbamate photometric method
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GB/T 14353.7-1993
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Basic data Standard ID | GB/T 14353.7-2010 (GB/T14353.7-2010) | Description (Translated English) | Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 7: Determination of arsenic content | Sector / Industry | National Standard (Recommended) | Classification of Chinese Standard | D40 | Classification of International Standard | 73.060 | Word Count Estimation | 8,880 | Date of Issue | 2010-11-10 | Date of Implementation | 2011-02-01 | Older Standard (superseded by this standard) | GB/T 14353.7-1993 | Quoted Standard | GB/T 6682; GB/T 14505 | Regulation (derived from) | National Standard Approval Announcement 2010 No.8 (Total No.163) | 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 ore, determination of lead ores and zinc ores of arsenic content. This section applies to copper ore, determination of lead ores and zinc ores of arsenic content. Measuring range: 5��g/g ~ 1500��g/g arsenic. |
GB/T 14353.7-2010: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 7: Determination of arsenic content ---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.
Methods for chemical analysis of copper ores, lead ores and zinc ores.Part 7. Determination of arsenic content
ICS 73.060
D40
National Standards of People's Republic of China
Replacing GB/T 14353.7-1993
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 7. Determination of the amount of arsenic
Methodsforchemicalanalysisofcopperores, leadoresandzincores-
Part 7. Determinationofarseniccontent
Issued on. 2010-11-10
2011-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 14353 "copper ores lead ores and zinc ores chemical analysis method" is divided into 18 parts.
--- Part 1. Determination of copper content;
--- Part 2. Determination of lead content;
--- Part 3. Determination of the amount of zinc;
--- Part 4. Determination of cadmium content;
--- Part 5. Determination of nickel content;
--- Part 6. Determination of cobalt content;
--- Part 7. Determination of arsenic content;
--- Part 8. Determination of the amount of bismuth;
--- Part 9. Determination of molybdenum;
--- Part 10. Determination of tungsten;
--- Part 11. determination of silver;
--- Part 12. Determination of sulfur content;
--- Part 13. the amount of gallium, indium and thallium amount for determination;
--- Part 14. Determination of germanium content;
--- Part 15. Determination of the amount of selenium;
--- Part 16. Determination of tellurium content;
--- Part 17. Determination of the amount of thallium;
--- Part 18. the amount of copper, lead content, the amount of zinc, cobalt and nickel content determination.
This section GB/T 14353 Part 7.
This Part replaces GB/T 14353.7-1993 "copper ores lead ores and zinc ores - Methods for chemical analysis diethyl dithiocarbamate
Spectrophotometric determination of arsenic content "acid silver.
Section compared with the GB/T 14353.7-1993, major changes in the following.
--- Increased alert, warnings;
--- Modify the sample drying temperature.
Appendix A of this section is an informative annex.
This section presents the People's Republic of China Ministry of Land Resources.
This part of the National Standardization Technical Committee under the jurisdiction of Land and Resources.
This section is responsible for drafting. National geology test center.
This section is drafted. the Shaanxi Provincial Institute of Experimental Geology and Mineral Resources.
The main drafters of this section. Tian Ping, Luozhen Qi, Su Jianhua.
This part of the standard replaces the previous editions are.
--- GB/T 14353.7-1993.
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 7. Determination of the amount of arsenic
Warning. Use of this section a person should be subject to the relevant professional and technical training, with some work experience. This section does not indicate all
Possible security issues, users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
GB/T 14353 in this section specifies the method for determination of copper ores lead ores and zinc ores of arsenic content.
This section applies to copper ores, lead ores and zinc ores - Determination of arsenic content.
Measuring range. 5μg/g ~ 1500μg/g arsenic.
2 Normative references
The following documents contain provisions which, through reference GB/T 14353 in this section constitute provisions of this part of the dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this
section.
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 14505 method for chemical analysis of rocks and ores General rules and regulations
Principle 3
Sample with nitric acid, sulfuric acid decomposition in sulfuric acid medium, in the presence of potassium iodide, stannous chloride with the pentavalent arsenic to trivalent arsenic reduction, reuse
Arsenic-free zinc particles is reduced to trivalent arsenic gaseous arsine. Overflow arsine, triethanolamine containing diethyl dithiocarbamate Silver
(Ag-DDTC) of the chloroform solution absorption. Diethyl dithiocarbamate silver silver ions are reduced to red-brown colloidal silver, in points
A photometer to measure the absorbance at the wavelength of 530nm at the indirect determination of arsenic content.
4 Reagents
Unless otherwise stated in this section are consistent with the use of analytical reagent and GB/T 6682 analytical laboratory use in the analysis.
4.1 arsenic-free zinc particles (diameter of 2mm ~ 3mm).
4.2 chloroform.
4.3 Triethanolamine (ρ1.12g/mL).
4.4 hydrochloride (ρ1.19g/mL).
Nitrate 4.5 (ρ1.42g/mL).
4.6 sulfuric acid (11), Warning. improper dilution will produce dangerous
4.7 Sodium hydroxide solution (100g/L).
Weigh 10g of sodium hydroxide dissolved in 100mL of water, shake well.
4.8 Lead acetate solution (100g/L).
Weigh 10g lead acetate [Pb (CH3COO) 2 · 3H2O], dissolved in 100mL of water, shake well.
4.9 potassium iodide solution (300g/L).
Weigh 30g of potassium iodide was dissolved in 100mL of pure water, shake well. Using now.
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