GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method (English Version)
This standard specifies the determination method of ferric oxide content in alumina. This standard applies to the determination of ferric oxide content in alumina. Measuring range: 0.005% to 0.100%.
GB/T 6609.4-2004 history
2004GB/T 6609.4-2004 Chemical analysis methods and determination of physical performance of alumina Determination of ferric oxide content-Orthophenanthroline photometric method
1986GB/T 6609.4-1986 Methods for chemical analysis of aluminium oxide--The orthophenanthroline photometric method for the determination of ferric oxide content