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Homepage>ISO Standards>ISO 389-2:1994-Acoustics — Reference zero for the calibration of audiometric equipment-Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
download between 0-24 hoursReleased: 1994
ISO 389-2:1994-Acoustics — Reference zero for the calibration of audiometric equipment-Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones

ISO 389-2:1994

ISO 389-2:1994-Acoustics — Reference zero for the calibration of audiometric equipment-Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones

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Standard´s number:ISO 389-2:1994
Pages:7
Edition:1
Released:1994
DESCRIPTION

ISO 389-2:1994


Specifies levels supplementary to those specified in ISO 389:1991 (to be re-issued as ISO 389-1). Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type ER-3-14.