GB/T 4699.2-1984
Methods for chemical analysis of silicochromium--The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content
2008-11
- Standard No.
- GB/T 4699.2-1984
- Language
- Chinese
- Release Date
- 1984
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Replace By
- GB/T 4699.2-2008
- Lastest
- GB/T 4699.2-2008
- Scope
- This standard applies to the determination of chromium in silicon-chromium alloys. Measuring range: 25.00 to 50.00%.
GB/T 4699.2-1984 history
- 2008 GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method
- 1984 GB/T 4699.2-1984 Methods for chemical analysis of silicochromium--The alkaline fusion-ammonium persulfate oxidation volumetric method for the determination of chromium content
GB/T 4699.2-1984 -All Parts
GB/T 4699.1-1984 Methods for chemical analysis of silicochromium--The gravimetric method for the determination of silicon content
GB/T 4699.2-2008 Ferrochromium and ferrosilicochromium. Determination of chromium content. The ammonium persulfate oxidation titrimetric method and potentiometric titration method
GB/T 4699.3-2007 Ferrochromium, silicochromium and nitrogen-bearing ferrochromium.Determination of phosphorus content.Molybdobismuthylphosphoric blue speckophotometric method and the molybdenum blue spectrophotometric method
GB/T 4699.4-2008 Ferrochromium and silicochromium. Determination of carbon content. Infrared absorption method and gravimetric method
GB/T 4699.6-2008 Ferrochromium and silicochromium. Determination of sulfur content. The infrared absorption method and combustion-titration method
GB/T 4699.7-1988 Methods for chemical analysis of silicochromium--The combustion-neutralization titration method for the determination of sulfur content