Mechanical environment stability test methods for machines, instruments and other industrial products. Test methods for acoustic noise (vibration, acoustic component)
System of standards on information, librarianship and publishing. Monolingual thesaurus for information retrieval. Rules for development, structure, composition and form of presentation
Electroacoustics. Hearing aids. Part 7. Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes
€10
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