This part of GB/T14849 specifies the method for the determination of iron content in industrial silicon. This section applies to the determination of iron content in industrial silicon. The measuring range is: 0.050%~0.75%.
GB/T 14849.1-2020 Referenced Document
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 14849.1-2020 history
2020GB/T 14849.1-2020 Methods for chemical analysis of silicon metal—Part 1:Determination of iron content
2007GB/T 14849.1-2007 Methods for chemical analysis of silicon metal-Part 1:Determination of iron content-1,10-Phenanthrolion spectrophotometric method
1993GB/T 14849.1-1993 Silicon metal.Determination of iron content.1,10-Phenanthroline spectrophotometric method