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GB/T 3286.4-2012: Methods for chemical analysis of limestone and dolomite -- Part 4: The determination of iron oxide content -- The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric method
Status: Valid GB/T 3286.4: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3286.4-2012 | English | 329 |
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Methods for chemical analysis of limestone and dolomite -- Part 4: The determination of iron oxide content -- The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric method
| Valid |
GB/T 3286.4-2012
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| GB/T 3286.4-1998 | English | 239 |
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Methods for chemical analysis of limestone and dolomite--The determination of iron oxide content
| Obsolete |
GB/T 3286.4-1998
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| GB/T 3286.4-1988 | English | RFQ |
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Chemical analysis of limestone and dolomite--The molybdenum blue photometric method for determination of silicon dioxide
| Obsolete |
GB/T 3286.4-1988
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PDF similar to GB/T 3286.4-2012
Basic data | Standard ID | GB/T 3286.4-2012 (GB/T3286.4-2012) | | Description (Translated English) | Methods for chemical analysis of limestone and dolomite -- Part 4: The determination of iron oxide content -- The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 73.080 | | Word Count Estimation | 14,161 | | Older Standard (superseded by this standard) | GB/T 3286.4-1998 | | Quoted Standard | GB/T 2007.2; GB/T 3286.1; GB/T 3286.2; GB/T 3286.3; GB/T 6379.2; GB/T 6682; GB/T 7728; GB/T 8170 | | Regulation (derived from) | National Standards Bulletin 2012 No. 28 | | 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 use phenanthroline spectrophotometry and flame atomic absorption spectrometry iron oxide content. This section applies to limestone, dolomite iron oxide content (with ferric oxide meter) determination, but also for metallurgica | GB/T 3286.4-2012: Methods for chemical analysis of limestone and dolomite -- Part 4: The determination of iron oxide content -- The o-phenanthroline spectrophotometric method and the flame atomic absorption spectrometric 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.
ICS73.080
D52
National Standards of People's Republic of China
Replacing GB/T 3286.4-1998
Methods for chemical analysis of limestone and dolomite
Part 4. Determination of iron oxide content of o-nitrogen
Miscellaneous Philippine spectrophotometry and flame atomic absorption spectrometry
Methodsforchemicalanalysisoflimestoneanddolomite-Part 4. The
Issued on. 2013-05-01 2012-11-05 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 3286 "Methods for chemical analysis of limestone and dolomite" is divided into nine sections.
--- Part 1. calcium oxide and magnesium oxide content complexometric titration and flame atomic absorption spectrometry;
--- Part 2. Determination of silica content of silicon molybdenum blue spectrophotometric method and perchloric acid dehydration gravimetric method;
--- Part 3. Determination of alumina content of chromium azure S spectrophotometric and complexometric titration;
--- Part 4. Determination of iron oxide content of phenanthroline spectrophotometric method and the flame atomic absorption spectrometry;
--- Part 5. Determination of manganese oxide content;
--- Part 6. Determination of phosphorus content;
--- Part 7. Determination of sulfur content;
--- Part 8. Determination of loss on ignition;
--- Part 9. Determination of the amount of carbon dioxide.
This is Part 4 GB/T 3286's.
Rules in this section in accordance with GB/T 1.1-2009 given draft.
This Part replaces GB/T 3286.4-1998 "limestone, dolomite chemical analysis of iron oxide content determination."
This section compared with the GB/T 3286.4-1998, mainly for the following changes.
--- The standard name be changed to "Methods for chemical analysis of limestone and dolomite - Part 4. Determination of iron oxide content of Orthophenanthroline
Spectrophotometry and flame atomic absorption spectrometry ";
--- Normative references canceled reign, and adds some reference standards;
--- Carried out jointly between laboratory precision test statistics obtained by the repeatability limit (r) and reproducibility limit R instead of "allowable difference";
--- Change some text expression;
--- Sample dilution, the amount of hydrofluoric acid and perchloric acid and other technical conditions were modified;
--- O-test solution for calibration curve and the solution phenanthroline photometric two content segments Pipette amount partly modified.
This part is proposed by the China Iron and Steel Association.
This part of the National Steel Standardization Technical Committee (SAC/TC183) centralized.
This section is drafted. the Wuhan Iron and Steel (Group) Corporation, Metallurgical Industry Information Standards Institute.
The main drafters of this section. Wen east, Chen Shihua, Zhang Suizhong, Shao Mei, Zhao Xiwen, Zhou Zheng, Yu Weihua, CAO Hong-yan, Choujin Hui, Gao Jianping.
This part of the standard replaces the previous editions are.
--- GB/T 3286.4-1998;
--- GB/T 3286.11-1993;
--- GB/T 3286.13-1984.
Methods for chemical analysis of limestone and dolomite
Part 4. Determination of iron oxide content of o-nitrogen
Miscellaneous Philippine spectrophotometry and flame atomic absorption spectrometry
1 Scope
This section GB/T 3286 requirements using phenanthroline spectrophotometric method and the flame atomic absorption spectrometry iron oxide content.
This section applies to limestone and dolomite - The determination of iron oxide content (iron oxide meter), but also applies to the metallurgical lime oxide
Determination of iron content phenanthroline spectrophotometric measurement range (mass fraction). iron oxide content of 0.02% to 4.0%; flame atomic
Absorption spectroscopy, the measurement range (mass fraction). iron oxide content of 0.02% to 4.0%.
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 any amendments) applies to this document.
GB/T 2007.2 bulk minerals sampling and sample preparation General manual sample preparation method
GB /Part 1 T3286.1 limestone and dolomite Chemical analysis methods. Determination of calcium oxide and magnesium oxide content of the complex drops
Titration and flame atomic absorption spectrometry
GB/T 3286.2 limestone and dolomite chemical analysis - Part 2. Determination of silicon dioxide content of silicon-molybdenum blue spectrophotometric
Degree method and perchloric acid dehydration gravimetric method
GB/T 3286.3 limestone and dolomite chemical analysis - Part 3. Determination of aluminum oxide content of chromium azure S spectrophotometer
Degree method and complexometric titration
GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat
Of the basic methods of reproduction
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 7728 metallurgical products for chemical analysis by flame atomic absorption spectrometry General
GB/T 8170 represents rounding off rules and limit values \u200b\u200band judgment
3 phenanthroline spectrophotometry
3.1 Principle
Sample with sodium carbonate - boric acid flux melt, dilute hydrochloric acid leaching aliquot of the test solution, the ascorbic acid reduction of ferric to ferrous.
In acetic acid - sodium acetate medium, ferrous phenanthroline generated orange-red complex, measured at 510nm wavelength spectrophotometer suck
Luminosity.
3.2 Reagents
Unless otherwise stated, use only reagents of recognized analytical grade and in line with GB/T 6682 prescribed three or more purity distilled water or fairly
Of water.
3.2.1 mixed flux. Take two anhydrous sodium carbonate and a boric acid grind, and mix.
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