YS/T 519.4-2006 Method for chemical analysis of arsenic-Dithiobisantipyrine-based methane spectrophotometric method for determination of bismuth content (English Version)
2009YS/T 519.4-2009 Methods for chemical analysis of arsenic.Part 4:Determination of bismuth,antimony and sulfur content.Inductively coupled plasma atomic cmission spectrometry
2006YS/T 519.4-2006 Method for chemical analysis of arsenic-Dithiobisantipyrine-based methane spectrophotometric method for determination of bismuth content