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  4. Standard "ISO 389-9:2009"
Standard ISO 389-9:2009 7.5.2009 preview

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

Automatically translated name:

Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels



STANDARD published on 7.5.2009


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Price99.40 USD excl. VAT
99.40 USD

The information about the standard:

Designation standards: ISO 389-9:2009
Publication date standards: 7.5.2009
SKU: NS-431700
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: International technical standard
Category: Technical standards ISO

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Noise with respect to human beings

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