Akustika - Zero e referimit për kalibrimin e pajisjeve audiometrike - Pjesa 2: Nivelet e presionit të tingullit të pragut ekuivalent të referencës për kufjet me tingull të pastër dhe me futje në vesh
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)
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.
Life cycle
NOW
PUBLISHED SSH EN ISO 389-2:1996 60.60
Standard published 1 jan 2003