BS 2497-5:1988

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Standard reference zero for the calibration of pure tone air conduction audiometers. Specification for a standard reference zero using an acoustic coupler complying with BS 4668 | Status: Revised, Superseded, Withdrawn

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Publisher BS

File size 415.14 KB

Pages 8

Format PDF

Publication date 1988-02-29

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File size 415.14 KB

Pages 8

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Publication date 1988-02-29

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