Description: Number of failures of an object in a given scan divided by the scan; Name: average failure rate
Description: Number of failures within a population divided by the number of life units used by that population; Name: failure rate
Description: NPSH-value required for a drop of 3 % in the total head of the first stage of the pump as a standard basis for use in performance curves; Name: Net positive suction head required for a drop of 3 %