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immediate downloadReleased: 2009-05-07
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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English PDF
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89.39 USD
English Hardcopy
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89.39 USD
French PDF
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Printable
89.39 USD
French Hardcopy
In stock
89.39 USD
| Standard´s number: | ISO 389-9:2009 |
| Edition: | 1 |
| Released: | 2009-05-07 |
| Pages (English): | 9 |
| Pages (French): | 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.