• De validatie van de Nederlandse voornormen NVN 5622, NVN 5627, NVN 5636 en NEN 6421

      Kwakman PJM; van der Graaf ER; de Jong P; LSO (Rijksinstituut voor Volksgezondheid en Milieu RIVMKernfysisch Versneller Instituut KVIGroningenNuclear Resarch and Consultancy Group NRGArnhem, 2006-11-16)
      Reported here is the validation of four Dutch standards that are important for determining the concentration of radionuclides emitting so-called alpha or beta radiation. Both gross-alpha and gross-beta measurements are very useful for fast and easy screening of environmental samples after a nuclear accident. The texts for the standards were both improved and modernised. RIVM carried out this validation in cooperation with the Kernfysisch Versneller Instituut and the Nuclear Research and Consultancy Group for the standards NVN 5622, NVN 5627, NVN 5636 and NEN 6421. The validation was commissioned by the Netherlands Normalisation Institute. Analytical characteristics of the standards, including repeatability, accuracy, reproducibility and detection limit, were also determined by intercomparison in 6 to 10 laboratories.