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  4. Standard "ČSN EN ISO 389-7"
WITHDRAWN ČSN EN ISO 389-7 1.12.1998 preview

ČSN EN ISO 389-7 (011630)

Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and difuse-field listening conditions



STANDARD published on 1.12.1998


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Price9.30 USD excl. VAT
9.30 USD

The information about the standard:

Designation standards: ČSN EN ISO 389-7
Classification mark: 011630
Catalog number: 54343
Note: WITHDRAWN
Publication date standards: 1.12.1998
SKU: NS-168302
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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