![header thumbnail](/images/publishers\iso_cover.gif)
ISO 389-7:2005/Amd 1:2016
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
![header thumbnail](/images/publishers\iso_cover.gif)
Acoustics Reference zero for the calibration of audiometric equipment Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions Amendment 1: Reference threshold of hearing at 20 Hz and 18 000 Hz under free-field listening conditions and at 20 Hz under diffuse-field listening conditions
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
23-09-2021
French, English
12-07-2016
DocumentType |
Amendment
|
Pages |
2
|
PublisherName |
International Organization for Standardization
|
Status |
Withdrawn
|
SupersededBy |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.