GB/T 8704.5-2020
Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method (English Version)

Scope: This part of GB/T8704 specifies the determination of vanadium content using the ferrous ammonium sulfate visual titration method and the ferrous ammonium sulfate potentiometric titration method. This section applies to the determination of vanadium content in ferrovanadium. Measuring range (mass fraction): 35.00% ~ 85.00%.

GB/T 8704.5-2020 Referenced Document

GB/T 12805 Laboratory glassware.Burettes
GB/T 12806 Laboratory glassware.One-mark volumetric flasks
GB/T 12807 Laboratory glassware一Graduated pipettes*， 2021-05-21 Update
GB/T 12808 Laboratory glass instrument single marked line pipette
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis
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 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

2020 GB/T 8704.5-2020 Ferrovanadium—Determination of vanadium content—The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method
2007 GB/T 8704.5-2007 Ferrovanadium-Determination of vanadium content-The ammonium ferrous sulfate titrimetric method and the potentiometric titrimetric method
1994 GB/T 8704.5-1994 Methods for chemical analysis of ferrovanadium. The potentiometric method for the determination of vanadium content