
Direct acting indicating analogue electrical measuring instruments and their accessories. Specification for definitions and general requirements common to all Parts
出版:British Standards Institution

專家解讀視頻
General requirements for ammeters, voltmeters, wattmeters, varmeters, frequency meters, phase meters, power factor meters, synchroscopes ohmmeters, impedance meters, conductance meters and multi-function meters of all types.
? British Standards Institution 2013
Amendment notes:
AMD 8831 published 15 December 1995