Acoustics. Reference zero for the calibration of audiometric equipment - Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz Ingestion-build-67170 5 Presentation and communication

5 Presentation and communication

BS EN 60974-12:2005 replaces BS EN 60974-12:1996

Detail specifications

it does not take into account

working load limits and mechanical properties are given in annex A

Acoustics. Reference zero for the calibration of audiometric equipment - Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz Ingestion-build-67170 5 Presentation and communication1 Scope This part of ISO 389 specifies reference equivalent threshold sound pressure levels (RETSPLs) of pure tones in the frequency range from 8 kHz to 16 kHz applicable to the calibration of air conduction audiometers for specific earphones. NOTE Some notes and references on the derivation and the test conditions used to determine the reference levels are given in Annex A and the Bibliography.