Community Research and Development Information Service - CORDIS


In measurements in general, and nuclear measurements in particular, the real state-of-the-practice (SoP) is frequently different from that described at conferences, in publications or at meetings. This is often the state-of-the-art (SoA) in research laboratories, or the ultimate possible, only achievable in a few highly specialised institutes. To determine the real state-of-the-practice, CBNM is running a programme on an interlaboratory basis for U and Pu element concentration and isotope assay. In the frame of this Regular European Measurement Evaluation Programme, well characterised samples are distributed to laboratories from numerous European and non-European countries. After returning their results the participants are provided with the carefully established reference value and graphs showing: (i) the interlaboratory spread; (ii) the deviation of each participant from the reference value; (iii) the participant's own uncertainty estimate and the uncertainty on the reference value. A number of rounds have been performed on various U- and/or Pu-containing materials such as pellets, powders, solutions and UF(6), and graphs displaying the SoP are presented.

Additional information

Authors: MAYER K, JRC Geel (BE);ALONSO A, JRC Geel (BE);DE BIEVRE P, JRC Geel (BE)
Bibliographic Reference: Paper presented: 3rd International Conference on Nuclear and Radiochemistry, Wien (AT), September 7-11, 1992
Availability: Available from (1) as Paper EN 37018 ORA
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