Method for the determination of the proof and the comparative tracking indices of solid insulating materials
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Electroacoustics. Hearing aids-Definition and verification of hearing aid features
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Electroacoustics. Hearing aids-Induction-loop systems for hearing aid purposes. System performance requirements
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Electroacoustics. Hearing aids-Methods of measurement of the performance characteristics of bone conduction hearing aids
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Ball and socket couplings of string insulator units. Dimensions
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Quartz crystal units of assessed quality-Crystal units with thermistors
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Miniature fuses-Fuse resistors with particular overcurrent protection
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Series capacitors for power systems-Thyristor controlled series capacitors
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Semiconductor converters. General requirements and line commutated converters-Specification of basic requirements
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Designation of phase differences by hour numbers in three-phase AC systems
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