The National Standard Samples for Spectral and Chemical Analysis of 3 Series Cast Aluminum Alloys developed by our company on November 16, 2010 has been appraised and accepted by the competent national authorities. The standard samples of this project have determined the standard values of 16 elements in the standard samples of cast Aluminum Alloys, which can be used for micro-to-constant analysis of cast Aluminum Alloys, reaching the international advanced level of the same kind of standard samples.
