EN ISO 389-4 : 1998
Current
Current
The latest, up-to-date edition.
ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 4: REFERENCE LEVELS FOR NARROW-BAND MASKING NOISE
Published date
16-12-1998
Publisher
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Specifications
Annex A (informative) Notes on the derivation of the reference
levels
Annex B (informative) Bibliography
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