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About This Item
Full Description
Cross References:
ISO 389-1
ISO 266
ISO 389-2
ISO 8253-1
ISO 389-8
ISO 8253-2
IEC 60645-4
IEC 60645-1
ISO 389-5
BS ISO 226:2003
All current amendments available at time of purchase are included with the purchase of this document.
Document History
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BS EN ISO 389-7:2019
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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- Most Recent
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BS EN ISO 389-7:2005+A1:2016
Acoustics. Reference zero for the calibration of audiometric equipment-Reference threshold of hearing under free-field and diffuse-field listening conditions- Historical Version
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BS EN ISO 389-7:2005
Acoustics. Reference zero for the calibration of audiometric equipment. Reference threshold of hearing under free-field and diffuse-field listening conditions- Historical Version
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BS EN ISO 389-7:1998
Acoustics. Reference zero for the calibration of audiometric equipment-Reference threshold of hearing under free-field and diffuse-field listening conditions- Historical Version