YB/T 190.8-2001 Methods for chemical analysis of continuous casting mold powder The o-phenanthroline spctrophotometric and flame atomic absorption spectrometric method for the determination of iron content (English Version)
2014YB/T 190.8-2014 Continuous casting powder.The determination of iron content.The o-phenanthroline spectrophotometric method and the flame atomic absorption method
2000YB/T 190.8-2001 Methods for chemical analysis of continuous casting mold powder The o-phenanthroline spctrophotometric and flame atomic absorption spectrometric method for the determination of iron content