This standard establis es the methods and means of verification of impedance meters with an upper measurement limit of up to 10 MΩ and a measurement frequency of up to 500 kHz, with a minimum error of 1%.
NC 90-19-16-1987 history
1987NC 90-19-16-1987 Metrological Assurance. Impedance Meters. Methods and Means of Verification