Note: Decision rules in conformity assessment give a prescription for the acceptance or rejection of an item based on the measured quantity value and the associated measurement uncertainty and limit(s) expressed or implied by specified requirements, taking into account the acceptable level of the probability of making a wrong decision. On the basis of the decision rules, an "acceptance interval" and "rejection interval(s)" are determined, such that if the measured quantity value lies in the acceptance interval, the item is declared as conforming and if in the rejection interval, it is declared as non-conforming.