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ISO 389-9:2009 | 15 May 2009 | BSI Knowledge
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ISO 389-9:2009
Acoustics - Reference zero for the calibration of audiometric equipment - Part 9: Preferred test conditions for the determination of reference hearing threshold levels
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Published:
15 May 2009
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Descriptors
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ICS Codes
13.140 Noise with respect to human beings
Committee
EH/1/1
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ISBN
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ISO