GB/T 8704.6-2020
Ferrovanadium—Determination of silicon content—The sulfuric acid dehydration gralimetric method and the silicomolybdic blue photometric method (English Version)

Scope: This part of GB/T8704 specifies the determination of silicon content by the sulfuric acid dehydration gravimetric method and the silicon-molybdenum blue spectrophotometric method. This section is applicable to the determination of silicon content in ferrovanadium. The determination range (mass fraction) is: 0.10% ~ 3.50%.

GB/T 8704.6-2020 Referenced Document

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 8704.6-2020 Ferrovanadium—Determination of silicon content—The sulfuric acid dehydration gralimetric method and the silicomolybdic blue photometric method
2007 GB/T 8704.6-2007 Ferrovanadium- Determination of silicon content The sulphuric acid dehydration gravimetric method
1994 GB/T 8704.6-1994 Methods for chemical analysis of ferrovanadium. The sulphuric acid dehydration-gravimetric method for the determination of silicon content