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  4. Standard "BS 4009:1991"
WITHDRAWN BS 4009:1991 28.2.1991 preview

BS 4009:1991

Specification for artificial mastoids for the calibration of bone vibrators used in hearing aids and audiometers.



STANDARD published on 28.2.1991


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Price181.90 USD excl. VAT
181.90 USD

The information about the standard:

Designation standards: BS 4009:1991
Note: WITHDRAWN
Publication date standards: 28.2.1991
SKU: NS-66419
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS

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