• BS 2497-2:1969

BS 2497-2:1969

Specification for a reference zero for the calibration of pure-tone audiometers-Data for certain earphones used in commercial practice

BSI Group, 03/10/1971

Publisher: BS

File Format: PDF

$125.00$251.46


Published:10/03/1971

Note:This product is unavailable in Ukraine, Russia, Belarus

Specifies value of sound pressure level corresponding to audiometric zero for monaural earphone listening to pure tones of certain stated frequencies.

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