1.1 This standard (Part III) Jays down the minimum performance requirements and characteristics to be specified for direct reading pointer indicator type ac/dc electronic voltmeter operating up to 300 MHz.
1.2 The climatic and mechanical durability requirements for these voltmeters are under consideration.
IS 6767 Pt.3-1972 history
1973IS 6767 Pt.3-1972 Specification for AC/DC electronic voltmeters of the direct-reading pointer indicator type Part III up to 300 MHz