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Electroacoustics. Hearing aids - Induction-loop systems for hearing aid purposes. System performance requirements. Original standard BS EN IEC 60118-4-2015 + A1-2018 in PDF full version. Additional info + preview on request

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Electroacoustics. Hearing aids - Methods of measurement of the performance characteristics of bone conduction hearing aids. Original standard BS EN IEC 60118-9-2019 in PDF full version. Additional info + preview on request

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Ball and socket couplings of string insulator units. Dimensions. Original standard BS EN IEC 60120-2020 in PDF full version. Additional info + preview on request

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Quartz crystal units of assessed quality - Crystal units with thermistors. Original standard BS EN IEC 60122-4-2019 in PDF full version. Additional info + preview on request

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Miniature fuses - Definitions for miniature fuses and general requirements for miniature fuse-links. Original standard BS EN IEC 60127-1-2024 in PDF full version. Additional info + preview on request

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Miniature fuses - Fuse-holders for miniature fuse-links. Original standard BS EN IEC 60127-6-2024 in PDF full version. Additional info + preview on request

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