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  • BS 2497-5:1988

BS 2497-5:1988

Standard reference zero for the calibration of pure tone air conduction audiometers-Specification for a standard reference zero using an acoustic coupler complying with BS 4668

BSI Group, 02/29/1988

Publisher: BS

File Format: PDF

$76.00$152.40


Published:29/02/1988

Pages:8

File Size:1 file

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

Reference equivalent threshold sound pressure levels for two earphones, Beyer DT 48 with flat cushion and Telephonics TDH 39 with MC 41/AR cushion, in a form suitable for calibration.

All current amendments available at time of purchase are included with the purchase of this document.

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