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DIN EN ISO 389-4:1999-07
Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise (ISO 389-4:1994); German version EN ISO 389-4:1998
Summary
Akustik - Standard-Bezugspegel für die Kalibrierung audiometrischer Geräte - Teil 4: Bezugspegel für schmalbandige Verdeckungsgeräusche (ISO 389-4:1994); Deutsche Fassung EN ISO 389-4:1998
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 07/01/1999 |
| Page Count | 12 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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