NBN EN ISO 389-7:2005/A1:2016
Superseded Standard amendment
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NBN EN ISO 389-7:2005/A1:2016

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions - Amendment 1: Reference threshold of hearing at 20 Hz and 18 000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions (ISO 389-7:2005/Amd 1:2016)
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Publisher Bureau de Normalisation Belge (NBN)
Publication Date 09/23/2016
Cancellation Date 02/28/2017
Page Count 0
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