GB/T 3286.5-2014Method for chemical analysis of limestone and dolomite - Part 5: The determination of manganese oxide content - The periodate oxidation spectrophotometric method (English PDF)
石灰石及白云石化学分析方法 第5部分：氧化锰含量的测定 高碘酸盐氧化分光光度法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
March 27, 2014
Implementation date
January 1, 2015
Scope
GB/T 3286.5-2014 is the English-translated version of 石灰石及白云石化学分析方法 第5部分：氧化锰含量的测定 高碘酸盐氧化分光光度法.
GB/T 3286.5-2014 is the Chinese standard "Method for chemical analysis of limestone and dolomite - Part 5: The determination of manganese oxide content - The periodate oxidation spectrophotometric method".
Its scope clause reads: GB/T 3286 provisions of this part of the spectral oxidation with periodate spectrophotometric determination of manganese oxide content.
This section applies to limestone and dolomite - The determination of manganese oxide (MnO in volume), but also applies to the metallurgical manganese oxide containing lime Determination of the amount.
Measurement range (mass fraction). manganese oxide content of 0.005% to 0.50%. Its clauses include reagents.
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Document preview — GB/T 3286.5-2014
National Standard of the People's Republic of China
- ICS
- 73.080
- Classification
- D 52
- Replacing
- GB/T 3286.5-1998
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
1 Scope
GB/T 3286 provisions of this part of the spectral oxidation with periodate spectrophotometric determination of manganese oxide content.
This section applies to limestone and dolomite - The determination of manganese oxide (MnO in volume), but also applies to the metallurgical manganese oxide containing lime
Determination of the amount. Measurement range (mass fraction). manganese oxide content of 0.005% to 0.50%.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
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/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 8170 repair value expressed about the rules and limit values and judgment
Principle 3
High temperature burning sample decomposition with hydrochloric acid, perchloric acid, perchloric acid smoke. In phosphoric acid medium, under heating conditions with periodate dicarboxylic
Seven-valent manganese oxidation of manganese, the absorbance is measured in a spectrophotometer at a wavelength of 525nm.
4 Reagents
4.1
Analysis Unless otherwise stated, use only reagents of recognized analytical grade and in line with GB/T 6682 provisions or distilled water three or more
Equivalent purity water.
4.2
hydrochloric acid, 11.
Perchloric acid 4.3, rho = 1.67g/mL.
4.4
phosphoric acid, 11.
4.5
sodium (potassium) solution, 20g/L.
Weigh 10g sodium (potassium) in the beaker, add 300mL water, add 20mL of nitric acid (11), warmed to dissolve, dilute with water to
500mL, and mix.
Note. The preparation of high potassium iodate solution when cooled to room temperature, low temperature may have a little crystal precipitation, does not affect the results.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 3286.5
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 3286.5-2014 | Method for chemical analysis of limestone and dolomite - Part 5: The determination of manganese oxide content - The periodate oxidation spectrophotometric method | current edition | Current |
| GB/T 3286.5-1998 | Method for chemical analysis of limestone and dolomite - Part 5: The determination of manganese oxide content - The periodate oxidation spectrophotometric method | previous edition | Superseded |
This page sells the current edition, GB/T 3286.5-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 3286.6-2014 — Methods for chemical analysis of limestone and dolomite—Part 6: The determination of phosphorus content—The phosphomolybdate blue spectrophotometric method
GB/T 3286.4-1998 — Methods for chemical analysis of limestone and dolomite--The determination of iron oxide content
GB/T 3286.6-1998 — Methods for chemical analysis of limestone and dolomite--The determination of phosphorus content
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