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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
sklademVydáno: 2009-05-07
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

ISO 389-9:2009

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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Anglicky PDF
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78.99 €
Francouzsky PDF
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78.99 €
Anglicky Hardcopy
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Francouzsky Hardcopy
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Označení normy:ISO 389-9:2009
Vydání:1
Vydáno:2009-05-07
Počet stran (Anglicky):9
Počet stran (Francouzsky):10
DESCRIPTION

ISO 389-9:2009

ISO 389-9:2009 specifies test conditions for determining the hearing thresholds of subjects for the purpose of establishing standardized values for reference hearing threshold levels.

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