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Hlavní stránka>BS EN ISO 389-2:1997 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and insert earphones
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sklademVydáno: 1995-03-15
BS EN ISO 389-2:1997 Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and insert earphones

BS EN ISO 389-2:1997

Acoustics. Reference zero for the calibration of audiometric equipment Reference equivalent threshold sound pressure levels for pure tones and insert earphones

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Označení normy:BS EN ISO 389-2:1997
Počet stran:14
Vydáno:1995-03-15
ISBN:0 580 23597 1
Status:Standard
Popis

BS EN ISO 389-2:1997


This standard BS EN ISO 389-2:1997 Acoustics. Reference zero for the calibration of audiometric equipment is classified in these ICS categories:
  • 11.040.01 Medical equipment in general
  • 13.140 Noise with respect to human beings

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 389:19911). 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.


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