This part of GB/T 6730 specifies the determination of ferrous content by potassium dichromate titration. This section applies to the determination of ferrous iron content in iron ore, iron concentrate, sinter and pellets. Measuring range (mass fraction): 0.700%~30.00%.
GB/T 6730.8-2016 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 6730.8-2016 history
2016GB/T 6730.8-2016 Iron ores.Determination of iron (Ⅱ) content.Potassium dichromate titrimetric method
1986GB/T 6730.8-1986 Methods for chemical analysis of iron ores--The potassium dichromate volumetric method for the determination of iron(2) content