YS/T 575.2-2006 Method for chemical analysis of bauxite ore gravimetric-molybdenum blue photometric method for determination of silica content (English Version)
2007YS/T 575.2-2007 Methods for chemical analysis of bauxite.Part2:Determination of silicon dioxide content.Gravimetric-molybdenum blue photometric method
1999YS/T 575.2-2006 Method for chemical analysis of bauxite ore gravimetric-molybdenum blue photometric method for determination of silica content