14/30279048 DC : DRAFT OCT 2014
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS EN ISO 389-3 - ACOUSTICS - REFERENCE ZERO FOR THE CALIBRATION OF AUDIOMETRIC EQUIPMENT - PART 3: REFERENCE EQUIVALENT THRESHOLD FORCE LEVELS FOR PURE TONES AND BONE VIBRATORS
20-10-2014
29-02-2016
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Reference equivalent threshold vibratory
force levels (RETVFLs)
5 Test conditions and requirements
Annex A (informative) - Note on the derivation
of RETVFL values
Annex B (informative) - Guidance on the application
of the reference zero to the calibration of
bone-conduction audiometers
Annex C (informative) - Differences in reference
equivalent threshold vibratory force levels
between forehead and mastoid location of vibrator
Annex D (informative) - Bone-conduction threshold of
hearing for frequencies below 250 Hz
Bibliography
BS EN ISO 389-3.
| Committee |
EH/1/1
|
| DocumentType |
Draft
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |