Steel and cast iron — Determination of copper content — 2,2'-Diquinolyl spectrophotometric method

This method is applicable to copper contents between 0.02 % (m/m) and 5 % (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.