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GB/T 14353.3-2010: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 3: Determination of zinc content
Status: Valid GB/T 14353.3: Evolution and historical versions
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| GB/T 14353.3-2010 | English | 209 |
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Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 3: Determination of zinc content
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GB/T 14353.3-2010
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| GB/T 14353.3-1993 | English | 399 |
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Methods for chemical analysis of copper ores lead ores and zinc ores. Determination of zinc
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GB/T 14353.3-1993
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Basic data | Standard ID | GB/T 14353.3-2010 (GB/T14353.3-2010) | | Description (Translated English) | Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 3: Determination of zinc content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D40 | | Classification of International Standard | 73.060 | | Word Count Estimation | 9,941 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-02-01 | | Older Standard (superseded by this standard) | GB/T 14353.3-1993 | | Quoted Standard | GB/T 6682; GB/T 14505 | | Regulation (derived from) | National Standard Approval Announcement 2010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 zinc content. This section applies to copper ore, determination of lead ores and zinc ores of zinc content. Measuring range: flame atomic absorption spectrophotometry 0. 5% to 20% zinc from 0. 01% to 5% zinc, EDTA volumetric method. | GB/T 14353.3-2010: Methods for chemical analysis of copper ores, lead ores and zinc ores -- Part 3: Determination of zinc content
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Methods for chemical analysis of copper ores, lead ores and zinc ores Part 3. Determination of zinc content
ICS 73.060
D40
National Standards of People's Republic of China
Replacing GB/T 14353.3-1993
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 3. Determination of the amount of zinc
Methodsforchemicalanalysisofcopperores, leadoresandzincores-
Part 3. Determinationofzinccontent
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 3.
This Part replaces GB/T 14353.3-1993 "copper ores lead ores and zinc ores - Methods for chemical analysis of zinc determination."
Section compared with the GB/T 14353.3-1993, major changes in the following.
--- Increased alert, warnings;
--- Modify the sample drying temperature;
--- Increased EDTA volumetric method;
--- Delete the original standard iodometric method and the first to third ammonium hydroxide - ammonium chloride Polarography.
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. Xiong Ying, guoju right, Hao-hui.
This part of the standard replaces the previous editions are.
--- GB/T 14353.3-1993.
Copper ores lead ores and zinc ores - Methods for chemical analysis
Part 3. Determination of the amount of zinc
Warning. Use of this section a person shall be regular laboratory work experience. This section does not indicate that 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 provisions of this part of the copper ores lead ores and zinc ores - Determination of zinc content.
This section applies to copper ores, lead ores and zinc ores - Determination of zinc content.
Measurement range. Flame atomic absorption spectrophotometry 0.5% to 20% of zinc from 0.01% to 5% zinc, EDTA volumetric method.
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
3 flame atomic absorption spectrophotometry
3.1 Principle
Sample by aqua regia (or hydrofluoric acid, aqua regia, perchloric acid) decomposed in hydrochloric acid (595) medium (or hydrochloric acid - boric acid media), empty
Air - acetylene flame. The wavelength at 213.8nm, zinc by atomic absorption spectrophotometer absorbance, calculate the amount of zinc.
3.2 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.
3.2.1 hydrochloric acid (ρ1.19g/mL).
3.2.2 nitrate (ρ1.42g/mL).
3.2.3 Hydrofluoric acid (ρ1.13g/mL) Warning. toxic hydrofluoric acid, is highly corrosive, the operation should wear gloves to prevent skin contact
3.2.4 perchloric acid (ρ1.67g/mL) Warning. explosive materials, careful
3.2.5 aqua regia (hydrochloric acid, nitric acid = 31) freshly prepared.
3.2.6 hydrochloric acid (11).
3.2.7 hydrochloric acid (595).
3.2.8 boric acid solution (60g/L).
3.2.9 Zinc Standard Solution.
a) standard zinc stock solution [ρ (Zn) = 1.00mg/mL]. Weigh 1.0000g zinc metal (≥99.99%), placed in 250mL burn
Cup, cover the surface of the dish, along the beaker wall was added 10mL hydrochloric acid (3.2.6), place autolysis (such as additional acid may be enough), dissolve completely
After the water wash away the surface of the dish and transferred to 1000mL volumetric flask, dilute to the mark, shake;
b) zinc standard solution [ρ (Zn) = 20.0μg/mL]. dispensing 20.00mL standard zinc stock solution [3.2.9a)], put
1000mL volumetric flask, dilute to the mark, shake.
3.3 Instrument
3.3.1 atomic absorption spectrophotometer (with continuous-spectrum lamp or Zeeman effect background corrector), with zinc hollow cathode lamp.
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