GB/T 5686.2-2022 《Ferromanganese, ferromanganese-silicon, nitrogen-bearing ferromanganese and manganese metal—Determination of silicon content—Molybdenum blue spectrophotometric method , silicon potassium fluoride titrimetric method and perchloric acid dehydration gravimetric method》 Related products

This standard specifies three methods for the determination of silicon content in ferromanganese, manganese-silicon alloys, micro-low carbon manganese-silicon alloys, ferromanganese nitride and metallic manganese. The methods include the molybdenum blue Spectrophotometric method, spectra-trophotometry (for the determination of silicon content in metallic manganese, range 0.10% -2.00%), potassium fluorosilicate Titrimetric method (for manganese-silicon alloys and micro-low carbon manganese-silicon alloys, range 12.00% -40.00%), and perchloric acid weighting method (for all types of manganese-based alloys, range 0.50% -40.00%). The standard provides detailed operating specifications and Measuring methods for the determination of silicon content in related alloy materials.