Example of electromagnetic shielding effectiveness test
ASTM D4935-18 : Test Method for Measuring the Electromagnetic Shielding Effectiveness of Planar Materials
EMCTEST Technologies Srls, Via Marecchiese 273, Rimini, ITALY
Phone: +39 0541 728562 | E-Mail: info@emctest.it


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ASTM D4935-18 - MEASURING THE ELECTROMAGNETIC SHIELDING EFFECTIVENESS OF PLANAR MATERIALS
Shielding effectiveness test following the Standard ASTM D4935-18: The Standard ASTM D4935-18 describes how measuring the electromagnetic (EM) shielding effectiveness (SE) of a planar material for a plane, far-field EM wave.
The measurement method is valid over a frequency range of 30 MHz to 1.5 GHz. These limits are not exact, but are based on decreasing displacement current as a result of decreased capacitive coupling at lower frequencies and on overmoding (excitation of modes other than the transverse electromagnetic mode (TEM)) at higher frequencies for the size of specimen holder described in this test method.
This test method is not applicable to cables or connectors.

Emctest Technologies is a laboratory that performs shielding effectiveness tests on site, directly to the customer, in Italy and in Europe, or at its headquarters in Rimini - Italy.

We perform shielding effectiveness tests for several sectors:

  • private
  • industrial
  • medical
  • nautical
  • aviation
  • military

Read more about it going back to the home page. Or if you are looking for a lab in order to test your product contact us via email or by phone simply clicking here.

Measurements are made according to customer specifications or in accordance with the main standards currently in use or:

shielding effectiveness test example with 2 antennas
GENERAL APPLICATION FIELDS
Textile
  • Fabrics used to protect premises against electromagnetic fields
  • Realization of card holders
  • Jackets pockets
  • Shirts
  • Bags
  • Suitcases to protect RFID cards

Construction
  • Shielding panels and sheets for the construction of shielded structures such as shelters, screened rooms, reserved rooms, medical rooms, etc.

Glasses
  • Glasses to be applied to screens for small equipment
  • Glasses for the construction of shielding windows for buildings or internal dividing walls.

Applicable solutions
  • Spray
  • Shielding paints

Other shielding solutions
  • Not mentioned above

Oversize Products
  • Aircrafts
  • Trucks
  • Cars
  • Military Shelter
  • Container
  • Electrical cabinets

Constructions
  • Entire buildings
  • Rooms
  • Reserved places
  • Government premises
  • Medical facilities
  • Shielded chambers
  • Anechoic chambers

Glasses
  • Shielded glasses
  • Equipment screens

Applicable solutions
  • Spray for industrial use
  • Military shielding paints

Other shielding solutions
  • Not mentioned above

shielding effectiveness graph
CONTACT US
For information regarding the shielding effectiveness test, or to get a quote, you can contact us by phone or write us an email.
  • Opening time: 9am to 6pm (UTC+01:00)

E-mail: info@emctest.it   |     Phone: +39 0541 728562

Or simply fill in the contact form below:

Type below the number you read: 4412