GB/T 5059.5-2014Ferromolybdenum - Determination of silicon content - Sulphuric acid dehydration gravimetric method and molybdenum blue spectrophotometric method (English PDF)
钼铁 硅含量的测定 硫酸脱水重量法和硅钼蓝分光光度法
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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 5059.5-2014 is the English-translated version of 钼铁 硅含量的测定 硫酸脱水重量法和硅钼蓝分光光度法.
GB/T 5059.5-2014 is the Chinese standard "Ferromolybdenum - Determination of silicon content - Sulphuric acid dehydration gravimetric method and molybdenum blue spectrophotometric method".
Its scope clause reads: GB/T 5059 This section specifies the spectrophotometric determination of molybdenum iron content of sulfuric acid dehydration gravimetric method for silicon and silicon molybdenum blue spectrophotometric.
This section applies to the determination of silicon content in ferromolybdenum. Measurement range (mass fraction). a method of sulfuric acid dehydration gravimetric method ~ 0.50% 2.50%, method two silicon molybdenum blue spectrophotometry 0.01% to 1.00%. Its clauses include a method of sulfuric acid dehydration gravimetric method.
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Document preview — GB/T 5059.5-2014
National Standard of the People's Republic of China
- ICS
- 77.100
- Classification
- H 11
- Replacing
- GB/T 5059.5-1986
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 3 a method of sulfuric acid dehydration gravimetric method
- 3.1 Principle
- 3.2 Reagents
- 3.3 Sampling and Preparation
- 3.4 Analysis Steps
1 Scope
GB/T 5059 This section specifies the spectrophotometric determination of molybdenum iron content of sulfuric acid dehydration gravimetric method for silicon and silicon molybdenum blue spectrophotometric.
This section applies to the determination of silicon content in ferromolybdenum. Measurement range (mass fraction). a method of sulfuric acid dehydration gravimetric method ~ 0.50%
2.50%, method two silicon molybdenum blue spectrophotometry 0.01% to 1.00%.
2 Normative references
The following documents for the application of this document is essential, 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 4010 alloy chemical analysis and preparation of samples
3 a method of sulfuric acid dehydration gravimetric method
3.1 Principle
Sample of nitric acid, hydrochloric acid decomposition, sulfuric smoke, the silicon to form insoluble silicates, filtered, washed with burning to constant weight. Join hydrofluoric acid
Li, silicon tetrafluoride silicon was removed by volatilization, and then calcined to constant, by differential weighing before and after treatment of hydrofluoric acid measured silicon content.
3.2 Reagents
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
3.2.1
hydrofluoric acid, rho = 1.15g/mL.
3.2.2
hydrochloride, rho = 1.19g/mL.
3.2.3
nitrate, 11.
3.2.4
hydrochloric acid, 14.
3.2.5
hydrochloric acid, 110.
3.2.6
sulfuric acid, 11.
3.3 Sampling and Preparation
In accordance with the provisions of GB/T 4010 will be sampling and sample preparation, the sample should be adopted 0.125mm sieve.
3.4 Analysis Steps
3.4.1 Sample volume
Weigh 1.00g sample, accurate to 0.0001g.
......
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
Cited by
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Editions of GB/T 5059.5
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 5059.5-2014 | Ferromolybdenum - Determination of silicon content - Sulphuric acid dehydration gravimetric method and molybdenum blue spectrophotometric method | current edition | Current |
| GB/T 5059.5-1986 | Ferromolybdenum - Determination of silicon content - Sulphuric acid dehydration gravimetric method and molybdenum blue spectrophotometric method | previous edition | Superseded |
This page sells the current edition, GB/T 5059.5-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 5059.6-2007 — Ferromolybdenum - Determination of phosphorus content - Molybdobismuthylphosphoric blue spectrophotometric method and the molybdenum blue spectrophotometrc method
GB/T 5059.3-1985 — Methods for chemical analysis of ferromolybdenum--The atomic absorption spectrophotometric method for the determination of copper content
GB/T 5059.6-1986 — Methods for chemical analysis of ferromolybdenum--The molybdenum blue photometric method for the determination of phosphorus content
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