Laboratory internal comparison and proficiency testing is to take advantage of laboratory internal testers' comparison to determine the laboratory proficiency activities. It is also the method to evaluate whether the tester is qualified to the test work. Therefore, carrying out the laboratory internal proficiency testing activities can promote the development of laboratory. This paper detailedly introduces how the carry out the proficiency testing work and its critical control point.%实验室内部比对和能力验证是利用实验室内部检测人员间比对来确定实验室能力的活动,是评价检测人员是否具有胜任其所从事检测工作能力的方法.定期开展实验室内部的能力验证活动可以对实验室的健康发展起到良性的促进作用.文章中对实验室内部如何开展能力验证工作及其控制关键点做了详尽指导.
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