UNE 74020:1991
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ACOUSTICS. STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE TONE AIR CONDUCTION AUDIOMETERS.
Published date
09-09-1991
Publisher
Superseded date
21-05-1996
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| Committee |
CTN 74
|
| DocumentType |
Standard
|
| PublisherName |
Asociación Española de Normalización
|
| Status |
Superseded
|
| Standards | Relationship |
| ISO 389:1985 | Identical |
| ISO 389:1991 | Identical |
Summarise
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