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.
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JIS H 4554:1999
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JIS C 6494:1999
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JIS C 6701:1999
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NACE RP0395-99
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