GB/T 9489.5-1988
Determination of SiO2 in alundum powder by colorimetry (English Version)
- Standard No.
- GB/T 9489.5-1988
- Language
- Chinese, Available in English version
- Release Date
- 1988
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Status
- 2009-04
- Replace By
- GB/T 9489-2008
- Latest
- GB/T 9489-2008
- Scope
- This method specifies the colorimetric method for the determination of silicon dioxide in corundum powder, and is applicable to various grades of corundum powder used in electric vacuum devices.
GB/T 9489.5-1988 history
- 2008 GB/T 9489-2008 Chemical analysis method of alundum powder
- 1988 GB/T 9489.5-1988 Determination of SiO2 in alundum powder by colorimetry
GB/T 9489.5-1988 Determination of SiO2 in alundum powder by colorimetry was changed to GB/T 9489-2008 Chemical analysis method of alundum powder.
GB/T 9489.5-1988 -All Parts
GB/T 9489.1-1988 General rule for analytical method of alundum powder
GB/T 9489.10-1988 Method for determination of ignition loss of alundum powder
GB/T 9489.2-1988 Determination of CaO,MgO,SiO2,Fe2O3,TiO2 in alundum powder by ICP-AES
GB/T 9489.3-1988 Determinations of Fe2O3,CaO,MgO,Na2O and K2O in alundum powder by atomic absorption spectrophotometry
GB/T 9489.4-1988 Determination of Al2O3 in alundum powder by complexometric titration
GB/T 9489.5-1988 Determination of SiO2 in alundum powder by colorimetry
GB/T 9489.6-1988 Determination of TiO2 in alundum powder by colorimetry
GB/T 9489.7-1988 Determination of chloride in alundum powder by visual turbidimetry
GB/T 9489.8-1988 Methods for determination of carbon and sulphur in alundum powder
GB/T 9489.9-1988 Methods for determination of pH in alundum powder