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  • BS 4668:1971

BS 4668:1971

Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry

BSI Group, 02/22/1971

Publisher: BS

File Format: PDF

$34.00$68.58


Published:22/02/1971

Pages:10

File Size:1 file

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

Specifies a reference coupler for loading an earphone with specified acoustic impedance when calibrating audiometers for the frequency range 125 Hz to 8000 Hz.

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

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