ISO 389-7:1996 PDF
Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
Acoustics — Reference zero for the calibration of audiometric equipment — Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 9
- Publication date:
- December 26, 1996
- Edition:
- ISO IS 389 edition 1 version 1
- ICS:
- 13.140
Specifies a reference threshold of hearing for the calibration of audiometric equipment used under definite conditions. The listeners are otologically normal persons in the age from 18 to 25 years inclusive. The data are given in numerical form for the preferred frequencies in the one-third-octave series from 20 Hz to 16 000 Hz in accordance with ISO 266.
Technical details
- Technical committee
- ISO/TC 43 - Acoustics
- SKU
- ISO 389-7:1996


