Testing of Homogeneity of Titanium Alloy-ARM for Spectrometric Analysis by Precision of Analytical Methods

In the testing of homogeneity of titanium alloy,candidate material for standard reference material (SRM) used in spectral analysis,critical values of repeatability limit (r) of the methods of analysis were used as criterions in judgement. As comparing with the method of variance analysis (F-testing),the proposed method was proved to be a more strict and rigorous method,and also more simple and convenient in application.