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Norm

ÖNORM EN ISO 266

Issue date: 1997 11 01

Acoustics - Preferred frequencies (ISO 266:1997)

This International Standard specifies preferred frequencies for acoustical measurements. The preferred frequencies are based on the RIO series of preferred numbers in IS...
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Publisher:
Austrian Standards International
Format:
Digital | 5 Pages
Language:
German | English | Download GER/ENG
Optionally co-design standards:
This International Standard specifies preferred frequencies for acoustical measurements. The preferred frequencies are based on the RIO series of preferred numbers in IS0 3 and the reference frequency of 1 000 Hz. For most acoustical measurements and presentations of data, a frequency spacing based on a constant percentage increment is generally preferred and the test frequencies then form a geometric series. For certain acoustical measurements, a constant frequency increment is a suitable spacing. The International Standard deals with the geometric series and is not intended to apply to cases where a constant frequency increment, or other particular spacing, would be more suitable, or where there may be good reasons for the adoption or retention of other frequencies. This International Standard does not deal with: - frequencies for music; - all audiometric frequencies; - series other than RIO from IS0 3.
ÖNORM EN ISO 266
1997 11 01
Acoustics - Preferred frequencies (ISO 266:1997)
Norm
Norm
ISO 3:1973
Issue date : 1973 04 01
Preferred numbers — Series of preferred numbers
Norm
ISO 266:1997
Issue date : 1997 03 27
Acoustics — Preferred frequencies