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DIN EN ISO 389-8:2004-11
Acoustics - Reference zero for the calibration of audiometric equipment - Part 8: Reference equivalent threshold sound pressure levels for pure tones and circumaural earphones (ISO 389-8:2004); German version EN ISO 389-8:2004
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Summary
This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPLs) for pure tonesin the frequency range from 125 Hz to 8 kHz, applicable to the calibration of air conduction audiometersequipped with a particular model of circumaural earphones (SENNHEISER HDA 200).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 inAnnex C.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 11/01/2004 |
| Page Count | 11 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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