Description: Runner resonant frequency calculated taking into account the additional support and damping caused by the effect of the fluid in the impeller; Name: crit speed (wet)
Description: Rotor resonant frequency calculated assuming that the rotor is supported only at its bearings and that the bearings are of infinite stiffness ; Name: Dry critical speed
Description: minimum mass of the liquid at design temperature divided by its volume, when stating the density, the unit of density used, together with the temperature, shall be explicitly given, for example kilogram per cubicmeter or gramme per mililiter at t°C (see the note). the standard reference temperature for international trade in petroleum and its products is 15°C (see ISO 5024), but other reference temperatures may be required for legal metrology or other special purposes; Name: minimum density at design temperature