AS ISO 389.7-2003
Obsolescent
“Obsolescent” indicates that the Standard is not recommended for new equipment or as a current practice, but it is retained in order to provide for servicing of existing equipment or requirements.
Acoustics - Reference zero for the calibration of audiometric equipment Reference threshold of hearing under free-field and diffuse-field listening conditions
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English
01-01-2003
Specifies a specific reference zero for the calibration of audiometric equipment.
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