IEC 60645-4:1994
Superseded
View Superseded by
Audiometers - Part 4: Equipment for extended high-frequency audiometry
Hardcopy , PDF
English - French
10-12-1994
02-16-2012
FOREWORD
INTRODUCTION
Clause
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
Specifies requirements for audiometric equipment designedfor use in pure tone audiometry in the frequency range from8 000 Hz to 16 000 Hz, in addition to those that are applicable and specified in IEC 645-1.
| DevelopmentNote |
Supersedes IEC 60177, IEC 60178 (03/2001) Also numbered as BS EN 60645-4. (12/2005)
|
| DocumentType |
Standard
|
| Pages |
19
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| NF EN 60645-4 : 1995 | Identical |
| NEN 10645-4 : 1995 | Identical |
| I.S. EN 60645-4:1996 | Identical |
| PN EN 60645-4 : 1999 | Identical |
| AS IEC 60645.4-2002 | Identical |
| CEI EN 60645-4 : 1996 | Identical |
| EN 60645-4:1995 | Identical |
| DIN EN 60645-4:1995-06 | Identical |
| UNE-EN 60645-4:1997 | Identical |
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