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level of measurement uncertainty is called the ‘target measurement uncertainty’ [H.7]). The performance of the method is then quantified in terms of precision and trueness.
5 kwi 2001 · The definition of uncertainty in measurement according to ISO is: ‘parameter, associated with a result of a measurement that characterises the dispersion of the values that could be reasonably attributed to the measurand’.
28 wrz 2017 · This chapter presents and explains the most used methodologies for the evaluation of measurement uncertainty in metrology with practical examples.
reviewing and comparing the currently available approaches for evaluating measurement uncertainty of quantitative test results and giving some examples. After more than ten years since publication of the 1st edition, the Guide to the Expression of Uncertainty in Measurement, known as the GUM, is acknowledged as the master document
Revised version of ISO 19036 offers a pragmatic approach to MU in quantitative food chain microbiology choice left between. Comprehensive approach with 3 components: technical, matrix and distributional uncertainties. Simplified approach: MU restricted to technical uncertainty.
ISO 17025:2005, clause 5.4.6.2 states: “Testing laboratories shall have and shall apply procedures for estimating uncertainty of measurement. In certain cases the nature of the test method may preclude rigorous, metrologically and statistically valid, calculation of uncertainty of measurement.
The ‘Guide to the expression of uncertainty in measurement’ (GUM) establishes general rules for evaluating and expressing uncertainty in measurement from the shop floor to fundamental research.
