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download between 0-24 hoursReleased: 1994
ISO 389-2:1994
ISO 389-2:1994-Acoustics-Reference zero for the calibration of audiometric equipment
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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.