Reliability of Measurement Uncertainty Estimates: Current Developments

Marina Patriarca, Barbara De Santis, Carlo Brera
Abstract:
Since the publication of the “Guide to the estimate of measurement uncertainty”, in 1993, several efforts were put in place to implement the principles of uncertainty estimate in all fields of measurement and testing. In the area of chemical analysis, including food analysis, it was early recognised that a purely metrological approach was not fully applicable. Eurachem and other organizations played a major role in implementing alternative approaches based on collaborative studies and the wealth of data already available, even to single laboratories, from quality assurance practices. More recently, given the increasing use of measurement uncertainty in compliance statements, attention has been paid to the setting of target measurement uncertainty as a key requisite for the validation of analytical methods. Finally, recent guidance recommends to providers of proficiency testing schemes to alert their participants regarding the plausibility of their reported uncertainty estimates. These aspects will be explored with regards to food analysis.
Keywords:
measurement uncertainty, validation studies, collaborative studies, target uncertainty, proficiency testing, food analysis
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IMEKO-TC23-2016-006.pdf
DOI:
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