期间核查是指为保持对设备校准状态的可信度,在2次检定期间进行的核查。通过期间核查可以增强实验室的信心,保证检测数据的准确性和可靠性。期间核查包括仪器设备的期间核查和参考标准、标准物质的期间核查,核查方法有仪器间比对、方法比对、实验室间比对、标准物质验证、添加回收标准物质等,条件允许时可以按检定规程进行自校。本研究根据实际工作经验,主要采用检定规程自校法、标准物质验证法,规范了疾病预防控制机构(简称疾控机构)理 Periodic verification refers to the verification performed during two verification periods in order to maintain the confidence of the calibration state of the equipment. Through the verification period can enhance the confidence of the laboratory to ensure the accuracy and reliability of test data. Period of verification during the verification of equipment and instruments including reference and reference standards, the verification of the period of reference materials, verification methods include comparison between instruments, comparison of methods, comparison between laboratories, verification of reference materials, addition of reference materials, etc., when conditions permit According to test procedures for self-school. According to the actual work experience, this study mainly adopts the self-school test of the test procedure and the verification method of the standard materials, and standardizes the CDC (Disease Control and Prevention Agency)