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ÖNORM EN ISO 389-2:1997-02

Действует
Acoustics - Reference zero for the calibration of audiometric equipment - Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
This part of ISO 389 specifies reference equivalent threshold Sound pressure levels (RETSPL) for the calibration of pure-tone audiometers supplementary to those specified in ISO 389:1991 Values given in this part of ISO 389 are applicable to insert earphones
of a Pattern specified in clause 4.
NOTE 1 For information, a note on the derivation of the reference values and the origin of the data input is given in annex A, and a bibliography is given in annex B.
Diese ÖNORM legt äquivalente Bezugs-Schwellenschalldruckpegel zur Kalibrierung von Reinton-Audiometern fest.
ICS
13.140 Noise. Including audiometry / Воздействие шума на человека. Включая аудиометрию