SN EN 60645-4 : 1995
Current
The latest, up-to-date edition.
AUDIOMETERS - PART 4: EQUIPMENT FOR EXTENDED HIGH-FREQUENCY AUDIOMETRY
01-12-2013
Committees responsible
National foreword
Foreword
1. Scope
2. Normative references
3. Explanation of terms
4. Facilities on extended high-frequency audiometers
5. General requirements
6. Test signals
6.1 Test signal frequencies
6.2 Frequency accuracy
6.3 Test signal level range for earphones
6.4 Masking sounds
7. Signal level control
7.1 Marking
7.2 Accuracy
7.3 Tone switching
7.4 Masking level
8. Unwanted sound
9. Transducers
9.1 Earphones
9.2 Loudspeaker
9.3 Bone vibrator
10. Audiogram format
10.1 Extended high-frequency audiogram
10.2 Combined audiogram
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