Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS EN ISO 389-8:2004

BS EN ISO 389-8:2004

$102.76

Acoustics. Reference zero for the calibration of audiometric equipment – Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones

Published By Publication Date Number of Pages
BSI 2004 16
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tones in the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometers equipped with a particular model of circumaural earphones (SENNHEISER HDA 200).

NOTE Some notes and references on the derivation and the test conditions used to determine the recommended reference levels are given in Annex A and the Bibliography.

The sound attenuation of the earphone is given in Annex B. For speech audiometers of types A-E and B-E (see IEC 60645-2), the correction figures of the earphone for a free-field equivalent output are given in Annex C.

Related products

BS EN ISO 389-8:2004
$102.76