NBN EN 60645-4 : 1996
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
AUDIOMETRES - PARTIE 4 : EQUIPEMENT POUR L'AUDIOMETRIE ETENDUE AU DOMAINE DES FREQUENCES ELEVEES
01-03-2015
12-01-2013
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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