| Publication CODE |
Title |
| IEC 60118-4:1981 (1981-01) |
METHODS OF MEASUREMENT OF ELECTRO-ACOUSTICAL CHARACTERISTIS OF HEARING AIDS.
PART 4: MAGNETIC FIELD STRENGTH in AUDIO-FREQUENCY INDUCTION LOOPS FOR HEARING AID PURPOSES |
| |
| Price Excl. VAT |
Total number of pages, tables and drawings |
|
21.00 €
|
9 P. |
Description
Applies to audio-frequency induction loop systems producing an alternating magnetic field and intended to provide an input signal for hearing aids operating with an induction pick-up coil. Specifies a standard value of magnetic field strength in audio-frequency induction loops for hearing aid purposes, such as will give an adequate signal-to-noise ratio without overloading the hearing aid.
|
| Class |
C990
(IEC PUBLICATIONS IEC PUBLICATIONS)
|
| BEC Approval |
1981-01-01 |
| ICS-Code (International Standards Classification) |
35.040
|
| NBN Status |
New |
|
| IEC publication date |
1981-01-01 |
| IEC last modification date |
2006-10-27 |
|
