engleski

IMPACT OF THE QUALITY OF MEASUREMENT RESULTS ON CONFORMITY ASSESSMENT

It is well known that measurement uncertainty is a key indicator of the quality of measurement results. We evaluate measurement uncertainty because the measurements are not perfect, for the purpose of unambiguous expression and comparison of measurement results obtained in various calibration and testing laboratories and also in order to compare the measurement results with the manufacturer's specifications or tolerance interval. In the paper, the impact of measurement uncertainty on the acceptance or rejection of a product according to its specification and measurement result is analysed. Decision rule based on simple acceptance and decision rules based on guard bands are described. In order to determine whether specified requirements relating to a product, process or system are fulfilled the different methods for uncertainty evaluation are also discussed.

Measurement Uncertainty ; Conformity Assessment ; Producer's Risk, Consumer's Risk, Decision rules

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