YS/T 575.12-2006 Method for chemical analysis of bauxite ore- Benzoyl phenylene spectrophotometric method for the determination of vanadium pentoxide (English Version)
2007YS/T 575.12-2007 Methods for chemical analysis of bauxite.Part 12:Determination of vanadium pentoxide content.N-benzoy-N-phenythytoxy lamine photometric method
2006YS/T 575.12-2006 Method for chemical analysis of bauxite ore- Benzoyl phenylene spectrophotometric method for the determination of vanadium pentoxide