![header thumbnail](/images/img-default-logo.png)
UNI EN ISO 389-7 : 2006
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
![header thumbnail](/images/img-default-logo.png)
ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 7: REFERENCE THRESHOLD OF HEARING UNDER FREE-FIELD AND DIFFUSE-FIELD LISTENING CONDITIONS
07-10-2022
01-01-2006
Defines essentially updated to the addition of the 'Table A.2', specifies a reference threshold of hearing for the calibration of audiometric equipment used under specific conditions.
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.