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>BSI Standards >17 METROLOGY AND MEASUREMENT. PHYSICAL PHENOMENA>17.140 Acoustics and acoustic measurements>17.140.50 Electroacoustics>BS 4668:1971 Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry
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immediate downloadReleased: 1971-02-22
BS 4668:1971 Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry

BS 4668:1971

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

CURRENCY
69.6 EUR
Standard number:BS 4668:1971
Pages:10
Released:1971-02-22
ISBN:0 580 06257 0
Status:Standard
DESCRIPTION

BS 4668:1971


This standard BS 4668:1971 Specification for an acoustic coupler (IEC reference type) for calibration of earphones used in audiometry is classified in these ICS categories:
  • 17.140.50 Electroacoustics

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