I.S. EN 60645-2:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
AUDIOMETERS - PART 2: EQUIPMENT FOR SPEECH AUDIOMETRY
Hardcopy , PDF
05-13-2021
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Definitions
4 General requirements
5 Minimum requirements for specific types of
audiometers
6 Reference conditions for specification, testing and
calibration of speech audiometers
7 Signal level indicator
8 Output level control for speech signals
9 Output sound-pressure level and vibratory force level
10 Frequency response
11 Harmonic distortion
12 Signal-to-noise ratio
13 Masking sound
14 Monitor earphone or loudspeaker
15 Talkback system
16 Interrupter switches
17 Marking and instruction manual
Annex A (informative) Correction figures for free-field
equivalent output for certain types of
commonly used earphones
Annex ZA (normative) Normative references to international
publications with their corresponding
European publications
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