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    Apparatus Type of Test Standard
    Calibration Test Bench for Electrical Energy Meter Influence of Self-heating (ISIRI 10795-21,IEC 62053-21) 8.4Clause
    Limits of Error Due to Variation of the Current (ISIRI 10795-21,IEC 62053-21) 7.3Clause
    Limits of Error Due to Influence Quantities (ISIRI 10795-21,IEC 62053-21) 8.1Clause
    Starting and No-load Condition (ISIRI 10795-21,IEC 62053-21) 8.2Clause
    Meter Constant (ISIRI 10795-21,IEC 62053-21) 8.3Clause
    High Voltage and Insulation Tester for Electrical Energy Meter AC Voltage (ISIRI 10795-21,IEC 62053-21) 7.4Clause