GB/T 8654.3-1988 Methods for chemical analysis of manganese metal--The molybdenum blue photometric method for the determination of silicon content (English Version)
This standard applies to the determination of silicon content in manganese metal and electrolytic manganese metal. Measuring range: 0.001% to 0.60%.
GB/T 8654.3-1988 history
2022GB/T 5686.2-2022 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method, silicon potassium fluoride titri
2008GB/T 5686.2-2008 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. Determination of silicon content. Molybdenum blue photometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric me
1988GB/T 8654.3-1988 Methods for chemical analysis of manganese metal--The molybdenum blue photometric method for the determination of silicon content
GB/T 8654.3-1988 Methods for chemical analysis of manganese metal--The molybdenum blue photometric method for the determination of silicon content was changed to GB/T 5686.2-2008 Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal. Determination of silicon content. Molybdenum blue photometric method, silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric me.