This standard ( Part I) prescribes the conditions and detailed procedures for the measurement of performance characteristics of direct reading pointer indicator type electronic millivoltmeter operating over a frequency range of 2 Hz to 5 MHz.
IS 6769 Pt.1-1972 history
1973IS 6769 Pt.1-1972 Specification for direct-reading pointer AC electronic millivolt meters Part Ⅰ Measurement methods