GB/T 5069.2-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials--Molybdenum blue photometric method for determination of silicon dioxide content (English Version)
This standard specifies the method for the determination of silica content by molybdenum blue photometry. This standard applies to the determination of loss on ignition in magnesia, magnesium-aluminum (aluminum-magnesium) refractory raw materials and products, and the measurement range is 0.10% to 5.00%.
GB/T 5069.2-2001 history
2015GB/T 5069-2015 Chemical analysis of magnesia-alumina refractories
2007GB/T 5069-2007 Chemical analysis of magnesia-alumina refractories
2001GB/T 5069.2-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials--Molybdenum blue photometric method for determination of silicon dioxide content