On the long-term stability of calibration standards in different matrices
Đurašević, Mirjana M.
Novković, Dušan N.
Šešlak, Bojan Ž.
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In order to assure Quality Control in accordance with ISO/IEC 17025, it was important, from metrological point of view, to examine the long-term stability of calibration standards previously prepared. Comprehensive reconsideration on efficiency curves with respect to the ageing of calibration standards is presented in this paper. The calibration standards were re-used after a period of 5 years and analysis of the results showed discrepancies in efficiency values. (C) 2012 Elsevier Ltd. All rights reserved.
Keywords:ISO 17025 quality control / Calibration standards / Long-term stability
Source:Applied Radiation and Isotopes, 2012, 70, 9, 1860-1862
- 18th International Conference on Radionuclide Metrology and its Applications (ICRM), Sep 19-23, 2011, Tsukuba, Japan