UNI EN ISO 389-4 : 1999
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The latest, up-to-date edition.
ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE
Published date
31-05-1999
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Defines reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry.
| Committee |
CT 2
|
| DevelopmentNote |
Replaces UNI EN 28798
|
| DocumentType |
Standard
|
| PublisherName |
Ente Nazionale Italiano di Unificazione (UNI)
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NBN EN ISO 389-4 : 1999 | Identical |
| NS EN ISO 389-4 : 1ED 1999 | Identical |
| BS EN ISO 389-4:1999 | Identical |
| NF EN ISO 389-4 : 1999 | Identical |
| NEN EN ISO 389-4 : 1999 | Identical |
| ISO 389-4:1994 | Identical |
| SN EN ISO 389-4 : 1999 | Identical |
| UNE-EN ISO 389-4:1999 | Identical |
| EN ISO 389-4:1998 | Identical |
| I.S. EN ISO 389-4:1999 | Identical |
| DIN EN ISO 389-4:1999-07 | Identical |
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