GB/T 3286.4-2012Methods 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 (English PDF)
石灰石及白云石化学分析方法 第4部分：氧化铁含量的测定 邻二氮杂菲分光光度法和火焰原子吸收光谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
November 5, 2012
Implementation date
May 1, 2013
Scope
GB/T 3286.4-2012 is the English-translated version of 石灰石及白云石化学分析方法 第4部分：氧化铁含量的测定 邻二氮杂菲分光光度法和火焰原子吸收光谱法.
GB/T 3286.4-2012 is the Chinese standard "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".
Its scope clause reads: 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%. Its clauses include phenanthroline spectrophotometry.
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Document preview — GB/T 3286.4-2012
National Standard of the People's Republic of China
- ICS
- 73.080
- Classification
- D 52
- Replacing
- GB/T 3286.4-1998
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 phenanthroline spectrophotometry
- 3.1 Principle
- 3.2 Reagents
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 and 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.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 3286.4
| Edition | Title | Revision | Status |
|---|---|---|---|
| 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 | current edition | Current |
| GB/T 3286.4-1998 | 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 | previous edition | Superseded |
This page sells the current edition, GB/T 3286.4-2012. Earlier editions are listed for reference only.
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Related Standards
GB/T 3286.1-2012 — Methods for chemical analysis of limestone and dolomite - Part 1: The determination of calcium oxide and magnesium oxide content - The complexometric titration method and the flame atomic absorption spectrometric method
GB/T 3286.10-2020 — Methods for chemical analysis of limestone and dolornite—Part 10:Determination of titanium dioxide content—Diantipyrylmethane spectrophotometric method
GB/T 3286.11-2022 — Methods for chemical analysis of limestone and dolomite—Part 11: Determination of calcium oxide, magnesium oxide, silicon dioxide, aluminium oxide and iron oxide content—Wavelength dispersive X-ray fluorescence spectrometry (Fused cast bead method)
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