GB/T 4325.20-1984 Methods for chemical analysis of molybdenum--The N-benzoyl-N-phenylhydroxylamine photometric method for the determination of vanadium content (English Version)
This standard is applicable to the determination of vanadium content in molybdenum powder, molybdenum bar, molybdenum trioxide and ammonium molybdate. Measuring range: 0.0005~0.01%.
GB/T 4325.20-1984 history
2013GB/T 4325.18-2013 Methods for chemical analysis of molybdenum.Part 18:Determination of vanadium content.N-benzoyl-N-phenylhydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry
1984GB/T 4325.20-1984 Methods for chemical analysis of molybdenum--The N-benzoyl-N-phenylhydroxylamine photometric method for the determination of vanadium content
GB/T 4325.20-1984 Methods for chemical analysis of molybdenum--The N-benzoyl-N-phenylhydroxylamine photometric method for the determination of vanadium content was changed to GB/T 4325.18-2013 Methods for chemical analysis of molybdenum.Part 18:Determination of vanadium content.N-benzoyl-N-phenylhydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry.