GB/T 3257.16-1999 Methods for chemical analysis of bauxite--Determination of gallium oxide concent--Rhodamine B-extraction photometric method (English Version)
This standard specifies the determination method of gallium trioxide content in bauxite ore. This standard is applicable to the determination of gallium trioxide content in bauxite ore, the determination range: 0.002% ~ 0.050%.
GB/T 3257.16-1999 history
1999GB/T 3257.16-1999 Methods for chemical analysis of bauxite--Determination of gallium oxide concent--Rhodamine B-extraction photometric method
GB/T 3257.16-1999 Methods for chemical analysis of bauxite--Determination of gallium oxide concent--Rhodamine B-extraction photometric method was changed to YS/T 575.15-2006 Method for chemical analysis of bauxite ore Rhodamine B extraction spectrophotometry Determination of gallium trioxide content.