A small number of RBCs are normally present in urine and usually result in a negative chemical test. An increased amount of hemoglobin and/or increased number of RBCs are detected as a positive chemical test result.
gigahertz. n, pl-hertz. 1. (Units) a unit of frequency equal to 10 9 hertz. Symbol: GHz.
So 1 kilohertz = 10 3. The definition of a hertz is as follows: The hertz (symbol Hz) is the SI unit of frequency. It is named in honour of the German physicist Heinrich Rudolf Hertz who made some important contributions to science in the field of electromagnetism.