SGS Germany Provides Shielding Effectiveness Measurements for Enclosures and EMC Materials

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SGS Germany GmbH, a provider of testing, inspection, verification and certification services across multiple industrial and technology sectors, provides shielding effectiveness measurements for enclosures and materials used to meet EMC protection goals by reducing electromagnetic radiation. The company performs measurements on small and large enclosures, cabinets, and large rooms, including containers with EMC shielding for IT servers, control rooms, and similar applications.

The company also determines the shielding effectiveness of planar materials, including shielding foils and films, fabrics with shielding effects, and materials such as plastics, glass, and wood coated or interwoven with ferrites or conductive structures.

Technical Possibilities

SGS performs shielding effectiveness measurements continuously across a frequency range from 10 kHz to 20 GHz, with extension up to 40 GHz possible for discrete frequencies.

The company operates several shielding rooms lined with RF absorbers for measuring shielding effectiveness from enclosures to transportable shielded rooms, including containers and shelters. SGS also offers on-site measurements for immobile rooms.

For determining the shielding effectiveness of planar material samples, SGS provides two measurement methods:

1. Measurement in a shielding enclosure developed by SGS with an opening that allows both solid and flexible material samples, including foils and fabrics, to be mounted.
2. Measurement in a specimen holder according to the ASTM D4935 standard, with a frequency range from 30 MHz to 10 GHz.

Normative Standards

SGS performs shielding effectiveness measurements according to the following standards:

• IEC 61587-3
• IEC 61000-5-7
• ASTM D4935
• VG 95373-15
• IEEE Std 299 TM and IEEE Std 299.1 TM

The company also states that other standards or customer-specific requirements are available on request.

Click here to learn more about these services.