![header thumbnail](/images/publishers\din_cover.gif)
DIN EN ISO 389-7:1998-12
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
![header thumbnail](/images/publishers\din_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
Hardcopy , PDF
07-03-2021
English
01-01-1998
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Specification
Annex A (informative) Notes on the derivation of
the reference thresholds of hearing
Bibliography
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.