37350

ISO 389-4:1994

Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise

standard by International Organization for Standardization , 10/01/1994

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Full Description

Specifies reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry. The data are given in terms of levels to be added to the reference equivalent threshold sound pressure levels for the corresponding pure-tone frequencies. Data are given for noise bandwidths of one-third and one-half octaves.

 

Product Details

Published:
10/01/1994
Number of Pages:
4
File Size:
1 file , 410 KB
Same As:
BS EN ISO 389-4:1999, BS EN ISO 389-4:1999
Note:
This product is unavailable in Ukraine, Russia, Belarus