Aluminium and aluminium alloys — Determination of titanium — Spectrophotometric chromotropic acid method

The method is applicable to products having titanium contents between 0,005 and 0,3 % (m/m). However, the method is not applicable completely to alloys having silicon contents higher than 1 % (m/m) (see annex). Specifies principle and procedure of the method, reagents, apparatus, sampling, expression of results and test report.