A few days ago, "Determination of average grain size of copper alloy", "analysis of chemical composition in zinc alloy" and "analysis of chemical composition in copper alloy" in Luoyang Copper processing won the "certificate of verification results of China's recognized ability", marking that the detection level of copper processing in Luoyang has stepped to a new level Laboratory proficiency testing is an important technical means to determine the laboratory testing ability by using the comparison between laboratories, and it is also an important measure to improve the quality control in the laboratory. In recent years, relying on rich testing experience, Luoyang Copper Processing Laboratory has participated in international and domestic laboratory capacity verification activities for many times, and the verification results are "satisfactory", which strongly proves the strong detection ability and level of Luoyang Copper Processing Laboratory.

In order to ensure that the three submitted projects can pass the proficiency test successfully, the company's laboratory carried out the comparison work in strict accordance with the testing standards, methods and project contents, and finally passed the proficiency test with "satisfactory" results.