AENOR - UNE 74020
CERO DE REFERENCIA NORMALIZADO PARA LA CALIBRACION DE AUDIOMETROS DE TONOS PUROS
inactive
| Organization: | AENOR |
| Publication Date: | 15 May 1978 |
| Status: | inactive |
Document History
September 9, 1991
ACOUSTICS. STANDARD REFERENCE ZERO FOR THE CALIBRATION OF PURE TONE AIR CONDUCTION AUDIOMETERS.
A description is not available for this item.
UNE 74020
May 15, 1978
CERO DE REFERENCIA NORMALIZADO PARA LA CALIBRACION DE AUDIOMETROS DE TONOS PUROS
A description is not available for this item.