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Mechanical structures for electronic equipment. Outdoor enclosures. Part 3. The environmental demands concern, testing and safety
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Reproducing devices of mechanical sound recording. General specifications
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Broadcast channels for transmission alert messages. Basic parameters
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Audio and audiovisual equipment. Digital audio parts. Basic measurement methods of audio characteristics. Part 1. General
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Radio components electromechanical. Method of testing of contact fixing
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Information technology. Text and office systems. Document Filing and Retrieval (DFR). Part 1. Abstract service definition and procedures
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