GB/T 5059.7-2014Ferromolybdenum - The determination of carbon content - Infrared absorption method (English PDF)
钼铁 碳含量的测定 红外线吸收法
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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 5059.7-2014 is the English-translated version of 钼铁 碳含量的测定 红外线吸收法.
GB/T 5059.7-2014 is the Chinese standard "Ferromolybdenum - The determination of carbon content - Infrared absorption method". Its scope clause reads: GB/T 5059 provisions of this part of the infrared absorption method for determination of carbon content in ferromolybdenum.
This section applies to the determination of carbon content in ferromolybdenum. Measurement range (mass fraction). 0.010% - 0.400%. Its clauses include reagents and materials; instruments and equipment.
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Document preview — GB/T 5059.7-2014
National Standard of the People's Republic of China
- ICS
- 77.100
- Classification
- H 11
- Replacing
- GB/T 5059.7-1988
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents and materials
- 5 instruments and equipment
1 Scope
GB/T 5059 provisions of this part of the infrared absorption method for determination of carbon content in ferromolybdenum.
This section applies to the determination of carbon content in ferromolybdenum. Measurement range (mass fraction). 0.010% - 0.400%.
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
Principle 3
The sample is heated in a high frequency induction furnace combustion flow of oxygen, carbon dioxide generated by the oxygen contained in the measuring chamber to the infrared analyzer dioxide
Carbon absorption in a specific wavelength of infrared energy absorbed is proportional to its concentration can change according to the received energy detector can measure the amount of carbon.
4 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical grade reagents and distilled water or its equivalent purity water.
4.1
acetone, carbon residue after evaporation was less than 0.0005%.
4.2
Magnesium perchlorate anhydrous, granular.
4.3
asbestos caustic soda, granular.
4.4
glass wool.
4.5
tungsten particles, the amount of carbon is less than 0.002%, particle size of 0.8mm ~ 1.4mm.
4.6
tin particles, carbon content less than 0.002%, particle size 0.4mm ~ 0.8mm. If necessary with acetone (4.1) to clean the surface, and at room temperature dry.
4.7
oxygen purity of more than 99.95%, if other levels of oxygen to obtain a low and consistent blank, can also be used.
4.8
Dynamic air, nitrogen or compressed air, which contaminants (oil and water) content of less than 0.5%.
4.9 Ceramic crucible diameter × height
23mm × 23mm or 25mm × 25mm, and a high temperature above 1200 °C burning furnace
4h or burned in oxygen burning to blank the lowest value.
4.10
crucible tongs.
5 instruments and equipment
5.1
Dingtan infrared absorption instrument (sensitivity of 1.0 × 10-6), which means as shown in Figure 1.
......
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 5059.7
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 5059.7-2014 | Ferromolybdenum - The determination of carbon content - Infrared absorption method | current edition | Current |
| GB/T 5059.7-1988 | Ferromolybdenum - The determination of carbon content - Infrared absorption method | previous edition | Superseded |
This page sells the current edition, GB/T 5059.7-2014. Earlier editions are listed for reference only.
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Related Standards
GB/T 5059.9-2008 — Ferromolybdenum - Determination of sulfur content - The infrared absorption method and the combustion-iodate volumetric method
GB/T 5059.6-1986 — Methods for chemical analysis of ferromolybdenum--The molybdenum blue photometric method for the determination of phosphorus content
GB/T 5059.9-1988 — Methods for chemical analysis of ferromolybdenum--The infrared absorption method for the determination of sulfur content
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