ISO 389:1991
Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometers
Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometers
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Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometers
ISO 389:1991
Acoustics — Standard reference zero for the calibration of pure-tone air conduction audiometers
| Edition | 1991 |
|---|---|
| Published Date | 1991 |
| Published By | International Standardization Organisation |
| Page Count | 6 |