Rule of decision
The rule of decision determines how the uncertainty of measurement is taken into account in statements on the conformity of measured values with specified requirements. If there are no standard requirements or customer requirements to the contrary, we apply the decision rule described here when assessing conformity. LABCO documents the decision rule used in the test reports.
Requirements (limit values) of the test parameters are taken from the data of the applicable standard or specification. Statements on the conformity of measured values, according to the decision rule presented here, are made without taking measurement uncertainties (U) into account. However, the measurement uncertainties to be assigned to the measured values are documented in the test reports in the form of an overview list.
The measurement uncertainty is defined as a parameter to identify a range of values in which the correct value of the measurand lies. Statements on conformity are made according to the applicable normative specifications (e. g. median value, average value, maximum value, etc.) as “conform” / “non-conform” if the measured values are within or outside the requirements.
