Abstract:According to the standard GB/T 15000.3-2008，GB/T 15000.5-1994，YB/T 082-1996 and related ISO Guides，we developed the standard of aluminum ferromanganese alloy for chemical analysis. After the samples were uniformly mixed，granularity experiment and uniformity examination were performed under requests. Normality analysis of uniformity data was conducted using Minitab software and then uniformity was evaluated with variance method. The F values for each element were less than the critical value F0.05，indicating that the uniformity of tested elements is good. The seven certified laboratories, using accurate and reliable analytical method which established on the basis of a variety of principles, performed statistical analysis on the analytical results and obtained the certified value of the tested elements. The results show that the uniformity, stability and accuracy of the certified value of the standard material reached the performance index of the national standard material，which is in line with the requirements for national measurement technical specifications.