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Homepage>UNE EN ISO 389-4:1999 ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE (ISO 389-4:1994)
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sklademVydáno: 1999-11-18
UNE EN ISO 389-4:1999 ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE (ISO 389-4:1994)

UNE EN ISO 389-4:1999

ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE (ISO 389-4:1994)

Acústica. Cero de referencia para la calibración de equipos audiométricos. Parte 4: Niveles de referencia para ruido de enmascarador de banda estrecha. (ISO 389-4:1994).

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Označení normy:UNE EN ISO 389-4:1999
Počet stran:13
Vydáno:1999-11-18
Status:Norma
DESCRIPTION

This standard UNE EN ISO 389-4:1999 ACOUSTICS. REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT. PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE (ISO 389-4:1994) is classified in these ICS categories:

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