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UNE 20644:1982
IEC PROVISIONAL REFERENCE COUPLER FOR THE CALIBRATION OF EARPHONES USED IN AUDIOMETRYMore info
| Author | AENOR |
|---|---|
| Editor | AENOR |
| Document type | Standard |
| Format | File |
| ICS | 13.140 : Noise with respect to human beings 17.140.50 : Electroacoustics |
| Number of pages | 6 |
| Cross references | IEC 303:1970 Identical |
| Year | 1980 |
| Country | Spain |