摘要
归纳了EMC实验室CNAS认可评审依据的文件。指出了EMC实验室在CNAS评审时常出现如下几类不合格案例:检测报告中缺少清晰标识、被测设备的连接示意图和检测布置示意图;校准证书中的校准参数不满足标准要求;仪器设备修正因子在测试系统中未及时更新;实验室无法提供标准变更后对测试方法、场地、设备等的验证记录;实验室未能提供屏蔽室满足屏蔽效能要求的证据。针对问题提出建议。
The basis of CNAS accreditation for EMC laboratory are summarized. Some non-conformities in the EMC laboratory accreditation are described and advices are proposed in detail. For example,there is no clear identification,test arrangement and devices connection in final report; calibration parameters in calibration certificate doesn＇t meet requirement of standards; modifying factor of devices aren＇t updated in test system; verification record of test methods,sites and devices aren＇t provided after standards＇ update; laboratory failed to provide evidence of shielding effectiveness.
