Description: in Hertz (Hz) specified by the manufacturer for the normal usage of a generator, and the accessory or associated equipment; Name: rated frequency
Description: Clarification of the object to a certain frequency which repeats itself regularly; Name: Nominal frequency
Description: Determined ten times the logarithm to the base 10 of the ratio of the sound energy, j, to a reference value, j0, expressed in decibels; Name: Sound energy level