This standard specifies the determination of ferrous iron content in reduced ilmenite powder for welding rods using the potassium dichromate titration method. This standard applies to the determination of ferrous iron content in reduced ilmenite powder for welding rods. Measuring range (mass fraction): 1.00% ~ 10.00%.
GB/T 8454-2020 Referenced Document
GB/T 10322.1 Iron ore sampling and sample preparation methods*, 2023-08-06 Update
GB/T 12808 Laboratory glass instrument single marked line pipette
GB/T 6379.1 Accuracy(trueness and precision)of measurement methods and results Part 1:General principles and definitions
GB/T 6379.2 Accuracy(trueness and precision)of measurement methods and results-Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 6730.1 Iron ores.Preparation of predried test samples for chemical analysis
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 8454-2020 history
2020GB/T 8454-2020 Reduced ilmenite powder for welding rob—Determination of ferrous iron content—Potassium dichromate titrimetric method
1987GB/T 8454-1987 Determination of ferrous iron content in reduced ilmenite powder for welding rod