GB/T 4333.9-1988 Methods for chemical analysis of ferrosilicon--The flame atomic absorption spectrometric method for the determination of aluminium content (English Version)
This standard specifies the determination of aluminum content by flame atomic absorption spectrometry. This standard is applicable to the determination of aluminum content in ferrosilicon, with a determination range of 0.05% to 5.00%.
GB/T 4333.9-1988 history
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
1988GB/T 4333.9-1988 Methods for chemical analysis of ferrosilicon--The flame atomic absorption spectrometric method for the determination of aluminium content
GB/T 4333.9-1988 Methods for chemical analysis of ferrosilicon--The flame atomic absorption spectrometric 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.