2017SH/T 0570-2017 Determination of platinum content in reforming catalysts by spectrophotometric method
1993SH/T 0570-1993 Determination of Platinum Content in Reforming Catalysts
SH/T 0570-1993 Determination of Platinum Content in Reforming Catalysts was changed to NB/SH/T 0570-2017 Determination of Platinum Content in Reforming Catalysts Spectrophotometric Method.