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  3. IEC 60118-4 Ed. 1.0 b:1981 PDF

IEC 60118-4 Ed. 1.0 b:1981 PDF

IEC 60118-4 Ed. 1.0 b:1981 PDF

Name:
IEC 60118-4 Ed. 1.0 b:1981 PDF

Published Date:
01/01/1981

Status:
[ Withdrawn ]

Description:

Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes

Publisher:
International Electrotechnical Commission

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Russian version):
200 business days
SKU:
Choose Document Language:
$6.3
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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.
Edition : 1.0
File Size : 1 file , 510 KB
Note : This product is unavailable in Ukraine, Russia, Belarus
Number of Pages : 9
Published : 01/01/1981

History

IEC 60118-4 Ed. 3.1 b:2017
IEC 60118-4 Ed. 3.1 b:2017
Published Date: 11/09/2017
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements CONSOLIDATED EDITION
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IEC 60118-4 Ed. 3.0 b:2014
IEC 60118-4 Ed. 3.0 b:2014
Published Date: 12/11/2014
Electroacoustics - Hearing aids - Part 4: Induction-loop systems for hearing aid purposes - System performance requirements
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IEC 60118-4 Ed. 1.0 b:1981
IEC 60118-4 Ed. 1.0 b:1981
Published Date: 01/01/1981
Hearing aids. Part 4: Magnetic field strength in audio-frequency induction loops for hearing aid purposes
$6.3

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