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Acoustics. Reference zero for the calibration of audiometric equipment. Reference threshold of hearing under free-field and diffuse-field listening conditions.
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STANDARD published on 6.12.2019
Designation standards: BS EN ISO 389-7:2019
Publication date standards: 6.12.2019
SKU: NS-978547
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 03231 4 Status: Confirmed
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