This part of GB/T 8704 specifies the determination of aluminum content in ferrovanadium by chrome azure S spectrophotometry and EDTA titration. This section applies to the determination of aluminum content in ferrovanadium. Chromazurin S spectrophotometric measurement range (mass fraction): 0.10%~0.80%; EDTA titration method measurement range (mass fraction): 0.50%~3.50%.
GB/T 8704.8-2009 Referenced Document
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis*, 2015-09-11 Update
GB/T 8704.8-2009 history
2009GB/T 8704.8-2009 Ferrovanadium.Determination of aluminium content.The chromazurol S spectrophotometric method and EDTA titrimetric method
1994GB/T 8704.8-1994 Methods for chemical analysis of ferrovanadium. The chromazurol S photometric method and EDTA volumetric method for determination of aluminium comtent