International Standard
ISO 389-2:1994
Acoustics — Reference zero for the calibration of audiometric equipment — Part 2: Reference equivalent threshold sound pressure levels for pure tones and insert earphones
Reference number
ISO 389-2:1994
ISO 389-2:1994
Edition 1
1994-07
1994-07
© ISO 2024
International Standard
p
ISO 389-2:1994
4378
Published
(Edition 1, 1994)
This standard was last reviewed and confirmed in 2020.
Therefore this version remains current.
Abstract
Specifies levels supplementary to those specified in ISO 389:1991 (to be re-issued as ISO 389-1). Values given are applicable to insert earphones of type Etymotic Research ER-3A, coupled to the human ear by ear inserts of type ER-3-14.
Life cycle
Got a question?
Check out our FAQs
Customer care
+41 22 749 08 88
Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)