Magnetic Shield

The following has been quoted from Frequently Asked Questions about Magnetic Shielding

Provided by: Magnetic Shield Corporation
740 North Thomas Drive
Bensenville, Illinois 60106
Telephone: 630-766-7800

What is ELF?

ELF stands for Extremely Low Frequency and usually refers to magnetic fields at 0.5 to 100 Hertz. This range includes the 60 Hertz power line frequency commonly used in the United States. In other countries, the power line frequency might be 50 Hertz.

 

What is the difference between RF and Magnetic shielding?

Radio frequency (or RF) shielding is required when it is necessary to block high frequency - 100 kilohertz and above - interference fields. These shields typically use copper, aluminum, galvanized steel, or conductive rubber, plastic or paints. These materials work at high frequencies by means of their high conductivity, and little or no magnetic permeability. Magnetic shields use their high permeability to attract magnetic fields and divert them through themselves. Magnetic shielding alloys have the ability to become broadband shields, performing shielding of both frequency ranges, when properly constructed." Note well, this last sentence answers your request for confirmation.

Offered by Mike.