According to the requirements of the "Criteria for Qualification Accreditation of Inspection and Testing Institutions", inspection and testing institutions shall participate in the proficiency verification required by the qualification accreditation department or the comparison activities between inspection and testing institutions.
It is also encouraged to participate in proficiency testing or comparisons organized by relevant government departments, international organizations, and professional and technical evaluation institutions to identify differences between laboratories, improve the comparability of testing data between laboratories, and urge them to maintain and improve verification (comparison Yes) the project's testing capabilities.
For participating in the laboratory, it is an effective external quality activity and a supplement to internal quality control technology. In the two proficiency tests that the test center participated in, the former is required to participate in the project, and the latter is voluntary to participate in the project.
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