This standard BS ISO 4942:2016 Steels and irons. Determination of vanadium content. N-BPHA spectrophotometric method is classified in these ICS categories:
77.080.01 Ferrous metals in general
This document specifies an N-benzoylphenylhydroxylamine (N-BPHA) spectrophotometric method for the determination of vanadium in steels and cast irons.
This document is applicable to vanadium contents between 0 ,005 % and 0,50 % (mass fraction).