INSTANTANEOUS FAILURE RATE
Definition
An <INSTANTANEOUS FAILURE RATE> is an <IndirectProperty> that refers to the limit, if it exists, of the <RATIO> of the conditional <PROBABILITY> that the instant of a failure of a non-repaired item falls within a given time interval (t, t + Dt) and the <DURATION>of this time interval, Dt, when Dt tends to zero, given that the item has not failed up to the beginning of a time interval