Superseded
Draft standard
Historical
DIN ISO 389-7:1994-03
Acoustics; reference zero for the calibration of audiometric equipment; part 7: reference threshold of hearing under free-field and diffuse-field listening conditions (ISO/DIS 389-7:1993)
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Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 03/01/1994 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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