Description: Characterization of a certificate with respect to the standard or guideline on the basis of which it was created.; Name: Certificate type
Description: classification of a certificate according to the standard or directive on the basis of which it was issued; Name: type of certificate
Description: proportion of pump available power input, pa, which is delivered as pump power output, pu, after satisfying the losses resulting from friction due to the relative motion of internal surfaces and internal leakage; Name: hydraulic efficiency