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    • Measurement of electrical and magnetic quantities
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    I.S. EN 60051-8:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - SPECIAL REQUIREMENTS FOR ACCESSORIES

    National Standards Authority of Ireland

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    I.S. EN 60051-6:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 6: SPECIAL REQUIREMENTS FOR OHMMETERS (IMPEDANCE METERS) AND CONDUCTANCE METERS

    National Standards Authority of Ireland

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    I.S. EN 60051-9:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 9: RECOMMENDED TEST METHODS

    National Standards Authority of Ireland

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    I.S. EN 60051-3:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 3: SPECIAL REQUIREMENTS FOR WATTMETERS AND VARMETERS

    National Standards Authority of Ireland

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    I.S. EN 60051-5:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 5: SPECIAL REQUIREMENTS FOR PHASE METERS, POWER FACTOR METERS AND SYNCHROSCOPES

    National Standards Authority of Ireland

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    I.S. EN 60051-7:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 7: SPECIAL REQUIREMENTS FOR MULTI-FUNCTION INSTRUMENTS

    National Standards Authority of Ireland

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    I.S. EN 60051-4:1990

    DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - PART 4: SPECIAL REQUIREMENTS FOR FREQUENCY METERS

    National Standards Authority of Ireland

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    I.S. EN 60687:1993

    ALTERNATING CURRENT STATIC WATT-HOUR METERS FOR ACTIVE ENERGY (CLASSES 0.2 S & 0.5 S)

    National Standards Authority of Ireland

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    I.S. EN 61028:1993

    ELECTRICAL MEASURING INSTRUMENTS - X-Y RECORDERS

    National Standards Authority of Ireland

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    I.S. EN 61142:1993

    DATA EXCHANGE FOR METER READING, TARIFF AND LOAD CONTROL - LOCAL BUS DATA EXCHANGE

    National Standards Authority of Ireland

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