This standard establis es the methods and means for the verification of selective microvoltmeters that work with frequency up to 35 MHz, used in the investigation of the spectrum of periodic signals and in the measurement of the effective voltage of sine waves in the limits of 1 μV at 1 V and with measurement error value of 3% or greater.
NC 90-19-17-1987 history
1987NC 90-19-17-1987 Metrological Assurance. Low Frecuency Selective Microvoltrneters. Methods and Means of Verification