Description: capabilty to perform the function under certain circumstances when required; Name: functionality
Description: Probability that a machine will, when used under specified conditions, operate satisfactorily and effectively; Name: Availability
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 %