Flores Laura, Santo Claudia, Trías Mónica
Technological Laboratory of Uruguay, Italia Ave 6201, Montevideo, Uruguay.
J AOAC Int. 2008 Jan-Feb;91(1):247-51.
This paper describes the implementation and methodology of an interlaboratory system that ensures the quality of glassware calibration and use in a large laboratory. The interlaboratory system involves periodic comparisons between laboratories with evaluations and improvements made over time. Two similar items are calibrated in each exercise according to a detailed calibration procedure. The reference value is traceable to the international system supplied by a metrology laboratory. The results are evaluated as normalized errors and analyzed by Youden graphs. The calibration procedure is presented. An interlaboratory experiment is described in which 7 participating laboratories performed calibrations of 2 volumetric flasks. The reported results, the interlaboratory evaluation, and the actions taken are presented.
本文描述了一个实验室间系统的实施过程和方法，该系统确保了大型实验室中玻璃器皿校准和使用的质量。实验室间系统包括实验室之间的定期比较，并随着时间的推移进行评估和改进。每次实验中，根据详细的校准程序对两个类似物品进行校准。参考值可追溯到计量实验室提供的国际系统。结果以标准化误差进行评估，并通过尤登图进行分析。文中介绍了校准程序。描述了一个实验室间实验，其中7个参与实验室对2个容量瓶进行了校准。文中呈现了报告的结果、实验室间评估以及采取的行动。
