GB/T 5069.3-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials--Gravimetric-molybdenum blue photometric method for determination of silicon dioxide content (English Version)
This standard specifies the method for determining the amount of silica by weight-molybdenum blue photometry. This standard is applicable to the determination of silica content in magnesia, magnesium-aluminum (aluminum-magnesium) refractory raw materials and products, and the determination range is >5.00%.
GB/T 5069.3-2001 history
2015GB/T 5069-2015 Chemical analysis of magnesia-alumina refractories
2007GB/T 5069-2007 Chemical analysis of magnesia-alumina refractories
2001GB/T 5069.3-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials--Gravimetric-molybdenum blue photometric method for determination of silicon dioxide content
GB/T 5069.3-2001 Chemical analysis of magnesia and magnesia-alumina refractory materials--Gravimetric-molybdenum blue photometric method for determination of silicon dioxide content was changed to GB/T 5069-2007 Chemical analysis of magnesia-alumina refractories.