Specification for direct acting indicating electrical measuring instruments and their accessories
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Direct acting indicating analogue electrical measuring instruments and their accessories-Specification for special requirements for frequency meters
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Direct acting indicating analogue electrical measuring instruments and their accessories-Specification for special requirements for phase meters, power factor meters and synchroscopes
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Direct acting indicating analogue electrical measuring instruments and their accessories-Specification for special requirements for ohmmeters (impedance meters) and conductance meters
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Direct acting indicating analogue electrical measuring instruments and their accessories-Specification for special requirements for accessories
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Direct acting indicating analogue electrical measuring instruments and their accessories-Recommended test methods
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