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GB/T 14506.5-2010: Methods for chemical analysis of silicate rocks -- Part 5: Determination of ferric oxide content
Status: Valid GB/T 14506.5: Evolution and historical versions
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| GB/T 14506.5-2010 | English | 299 |
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Methods for chemical analysis of silicate rocks -- Part 5: Determination of ferric oxide content
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GB/T 14506.5-2010
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| GB/T 14506.5-1993 | English | 279 |
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Sillicate rocks. Determination of iron oxide
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GB/T 14506.5-1993
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Basic data | Standard ID | GB/T 14506.5-2010 (GB/T14506.5-2010) | | Description (Translated English) | Methods for chemical analysis of silicate rocks -- Part 5: Determination of ferric oxide content | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D53 | | Classification of International Standard | 73.080 | | Word Count Estimation | 13,142 | | Date of Issue | 2010-11-10 | | Date of Implementation | 2011-02-01 | | Older Standard (superseded by this standard) | GB/T 14506.5-1993 | | Quoted Standard | GB/T 6682; GB/T 14506.1 | | Regulation (derived from) | National Standard Approval Announcement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 total iron content (in TFe2O3 dollars) for determination of silicate rocks. This section applies to the determination of the total amount of iron silicate rocks. Also applies to the total amount of iron in soil and stream sediment measured. Measuring range: potassium dichromate volumetric method. The total iron content greater than 5% sulfosalicylic acid method. 0. 05% to 15% of the total iron, phenanthroline photometric method. From 0. 01% to 15 % of the total iron content. | GB/T 14506.5-2010: Methods for chemical analysis of silicate rocks -- Part 5: Determination of ferric oxide content
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Methods for chemical analysis of silicate rocks Part 5. Determination of ferric oxide content
ICS 73.080
D53
National Standards of People's Republic of China
Replacing GB/T 14506.5-1993
Silicate rocks -
Part 5. Determination of total iron content
Part 5. Determinationofferricoxidecontent
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 14506 "Methods for chemical analysis of silicate rocks" 30 consists of the following components.
--- Part 1. Determination of water absorption;
--- Part 2. Determination of combined water;
--- Part 3. Determination of the amount of silica;
--- Part 4. Determination of the amount of aluminum oxide;
--- Part 5. Determination of total iron content;
--- Part 6. Determination of calcium oxide content;
--- Part 7. Determination of the amount of magnesium oxide;
--- Part 8. Determination of the amount of titanium dioxide;
--- Part 9. Determination of the amount of phosphorus pentoxide;
--- Part 10. Determination of the amount of manganese oxide;
--- Part 11. Determination of the amount of sodium hydroxide and oxide;
--- Part 12. Determination of the amount of fluorine;
--- Part 13. Determination of sulfur content;
--- Part 14. Determination of ferrous oxide;
--- Part 15. Determination of the amount of lithium;
--- Part 16. Determination of the amount of rubidium;
--- Part 17. Determination of the amount of strontium;
--- Part 18. Determination of copper content;
--- Part 19. Determination of lead content;
--- Part 20. Determination of the amount of zinc;
--- Part 21. Determination of the amount of nickel and cobalt;
--- Part 22. Determination of the amount of vanadium;
--- Part 23. Determination of chromium;
--- Part 24. Determination of cadmium content;
--- Part 25. Determination of molybdenum and tungsten;
--- Part 26. Determination of cobalt content;
--- Part 27. Determination of nickel content;
--- Part 28. Determination of the amount of 16 major and minor components;
Part --- 29. 22 the amount of rare earth element determination;
--- Part 30. Determination of the amount of 44 elements.
This section GB/T Part of 514,506.
This Part replaces GB/T 14506.5-1993 "Silicate rocks - Determination of iron oxide."
Compared with the original part of this section, the main changes are as follows.
--- Increasing the normative references;
--- Increased alert, warnings;
--- The weighed sample quantity and dispensing solutions to a list representation.
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. Zhejiang Institute of Geology and Mineral Resources.
The main drafters of this section. Hu Yongping, Jiang Zheng deposit, Sun Chaoyang.
This part of the standard replaces the previous editions are.
--- GB/T 14506.5-1993.
Silicate rocks -
Part 5. Determination of total iron content
Warning --- Use this section shall be a person experiences regular laboratory work. This section does not point out all possible security asked
question. 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 14506 provisions of this part of the total iron (in TFe2O3 meter) measurement method silicate rocks.
This section applies to the total iron silicate rock Determination, also applies to the measurement of soil and stream sediments in the total iron content.
Measurement range. potassium dichromate volumetric method, greater than 5% of the total iron content. Sulfosalicylic acid spectrophotometric, from 0.05% to 15% of the total iron content. adjacent
Phenanthroline spectrophotometry, from 0.01% to 15% of the total iron content.
2 Normative references
The following documents contain provisions which, through reference GB/T 14506 in this section constitute provisions of this section. For 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 14506.1 Silicate rocks - Part 1. Determination of water adsorption
3 potassium dichromate volumetric method
3.1 Principle
Sample molten sodium peroxide, water extraction, acidified with hydrochloric acid; or use the filtrate after separation of silica, iron precipitation with ammonia, filtered stars
From platinum, precipitated acid is dissolved into hydrochloric acid solution. Dispensing prepared solution was added stannous chloride reduction of the trivalent iron is divalent iron, then chlorine
Mercury oxide excess stannous chloride, sodium diphenylamine sulfonate as indicator, titrated with standard potassium dichromate solution titration, calculate the total amount of iron (to
TFe2O3 meter).
The reaction is.
2Fe3 Sn2 6Cl → - 2Fe2 SnCl2-6
Sn2 4Cl- 2HgCl → 2- SnCl2-6 Hg2Cl2 (calomel precipitate)
6Fe2 Cr2O2-7 14H → 6Fe3 2Cr3 7H2O
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 sodium peroxide.
3.2.2 ammonium fluoride.
3.2.3 sulfuric acid (11). Warning --- improper dilution risk prone
3.2.4 sulfuric acid (595).
3.2.5 hydrochloric acid (ρ1.19g/mL).
3.2.6 hydrochloric acid (11).
3.2.7 hydrochloric acid (12).
3.2.8 hydrochloric acid (595).
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