BSI BS 2497-2:1969

Withdrawn Revision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

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BSI BS 2497-2:1969

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

PUBLISH DATE 1971
BSI BS 2497-2:1969

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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