Measurement of uncertainty in quantitative microbiological examination of foods (NMKL Procedure No. 8, 2008)


The procedure shows how to estimate measurement uncertainty based on internal reproducibility data, and how to check that your estimate is adequate by participation in proficiency testing schemes. The aim was to make a simple and user-friendly guideline by using real examples, in order to get laboratories started on conducting estimations of measurement uncertainties. The procedure also shows how to use data from collaborative studies for estimation of the uncertainty, which presupposes that the laboratory verifies the obtained precision of the study. Further, the procedure describes the relation between standard deviations and concentration levels based on a number of parallels from collaborative studies, which in turn indicates the precision expected of the laboratory.
  • Produkt ID: NMKL Pro No8
  • Copyright: NMKL
  • Edition: No 8 - 4. Ed. 2008

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