GB/T 5070.2-2002 Chemical analysis of magnesia chromite refractories--Part 2: Determination of silicon dioxide--Molybdenum blue photometric method (English Version)
This part of GB/T 5070 specifies the method for determining the amount of silicon dioxide by molybdenum blue photometry. This section applies to the determination of the amount of silica in magnesia-chromium refractories. The measurement range (mass fraction) is 1.00% to 10.00%.
GB/T 5070.2-2002 history
2015GB/T 5070-2015 Chemical analysis of refractories containing chrome
2007GB/T 5070-2007 Chemical analysis of refractories containing chrome
2002GB/T 5070.2-2002 Chemical analysis of magnesia chromite refractories--Part 2: Determination of silicon dioxide--Molybdenum blue photometric method