This standard specifies the determination of aluminum content in ferrosilicon by EDTA volumetric method. This standard applies to the determination of the amount of aluminum in ferrosilicon. Measuring range: 0.60% to 5.00%.
GB/T 4333.5-1997 history
2016GB/T 4333.5-2016 Ferrosillicon—Determination of silicon, manganese, aluminium, calcium, chromium and iron contents—Wavelength dispersive X-ray fluorescence spectrometry (Fused cast bead method)
2007GB/T 4333.4-2007 Ferrosilicon-Determination of aluminium content-The chromazurol S spectrophotometric method,the EDTA titrimetric method and the flame atomic absorption spectrometric method
1997GB/T 4333.5-1997 Methods for chemical analysis of ferrosilicon the EDTA volumetric method for the determination of aluminium content
GB/T 4333.5-1997 Methods for chemical analysis of ferrosilicon the EDTA volumetric method for the determination of aluminium content was changed to GB/T 4333.4-2007 Ferrosilicon-Determination of aluminium content-The chromazurol S spectrophotometric method,the EDTA titrimetric method and the flame atomic absorption spectrometric method.