This part specifies the method for determining the amount of silicon dioxide by hydrofluoric acid gravimetric method. This section applies to the determination of the amount of silica in siliceous refractories. The determination range (mass fraction) is greater than 95.00%.
GB/T 6901.3-2004 history
2017GB/T 6901-2017 Chemical analysis of silica refractories
2008GB/T 6901-2008 Chemical analysis of silica refractories
2004GB/T 6901.3-2004 Chemical analysis of silica refractories-Part 3:Determination of silicon dioxide-Hydrofluoric acid gravimetric method
GB/T 6901.3-2004 Chemical analysis of silica refractories-Part 3:Determination of silicon dioxide-Hydrofluoric acid gravimetric method was changed to GB/T 6901-2008 Chemical analysis of silica refractories.