ISO 4942:1988

Steel and iron — Determination of vanadium content — N-BPHA spectrophotometric method

The method is applicable to vanadium contents between 0.005 % (m/m) and 0.50 % (m/m). Specifies principle, reagents, apparatus, sampling, procedure, expression of results and test report. Annex A gives additional information on the international co-operative tests. Annex B includes the graphical representation of precision data.