GB/T 3257.11-1999 Methods for chemical analysis of bauxite--Determination of chromium oxide content--Flame atomic absorption spectrophotometric method (English Version)
This standard specifies the method for the determination of chromium trioxide content in bauxite ore. This standard is applicable to the determination of chromium trioxide content in bauxite ore, the determination range: 0.005% ~ 0.200%.
GB/T 3257.11-1999 history
1999GB/T 3257.11-1999 Methods for chemical analysis of bauxite--Determination of chromium oxide content--Flame atomic absorption spectrophotometric method
GB/T 3257.11-1999 Methods for chemical analysis of bauxite--Determination of chromium oxide content--Flame atomic absorption spectrophotometric method was changed to YS/T 575.11-2006 Methods of chemical analysis of bauxite ore - Determination of chromium trioxide content by flame atomic absorption spectrometry.