BS 2497-1:1968

Specification for a reference zero for the calibration of pure-tone audiometers-Data for earphone coupler combinations maintained at certain standardizing laboratories

$132.00 $264.16

Specifies a standard reference zero for the scale of hearing threshold level applicable to pure-tone audiometers.

Published: 09/20/1968

ISBN: 0580003329

Language: English

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

$80.00

$132.00

$132.00

$132.00