GB/T 6609.18-2004 Chemical analysis methods and determination of physical performance of alumina Determination of sulfate content-N,N-dimethyI-P-phenylenediamine spectrophotometric method (English Version)
This standard specifies the method for the determination of sulfate content in alumina. This standard applies to the determination of sulfate content in alumina. Measuring range: 0.005% to 0.15%.
GB/T 6609.18-2004 history
2004GB/T 6609.18-2004 Chemical analysis methods and determination of physical performance of alumina Determination of sulfate content-N,N-dimethyI-P-phenylenediamine spectrophotometric method
1986GB/T 6609.18-1986 Methods for the chemical analysis of aluminium oxide--The N,N-dimethyl-P-phenylenediamine photometric method for the determination of sulfate content