The choice of intermediate check standard and the determination of check periodic to first-class standard Platinum and Rhodium 10-Platinum thermocouple are introduced in this paper.

介绍了一等标准铂铑10-铂热电偶核查标准的选取以及核查周期的确定，详细论述了一等标准铂铑10-铂热电偶期间核查的方法。

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Based on AQC test, the main factors influencing the results of total phosphor determination are analyzed so as to check up and evaluate the quality of measuring data of assay laboratory.

前言： 通过精密度偏性试验（AQC试验），分析确定影响总磷测定结果的主要因素；对分析化验室监测数据的质量进行检验和评价。

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