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  • 1 European Commission, Joint Research Centre Institute for Reference Materials and Measurements, Retieseweg B-2440 Geel Belgium
  • | 2 European Commission, Joint Research Centre Institute for Reference Materials and Measurements, Retieseweg B-2440 Geel Belgium
  • | 3 SCK·CEN, Belgian Nuclear Research Centre Boeretang 200 B-2400 Mol Belgium
  • | 4 University of the Basque Country E-48080 Bilbao Spain
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Abstract  

The concepts of the Guide to the expression of Uncertainties in Measurements for chemical measurements (GUM) and the recommendations of the Eurachem document "Quantifying Uncertainty in Analytical Methods" are applied to set up the uncertainty budget for k0-NAA. The "universally applicable spreadsheet technique", described by Kragten, is applied to the k0-NAA basic equations for the computation of uncertainties. The variance components — individual standard uncertainties — highlight the contribution and the importance of the different parameters to be taken into account.