Site Validation

SIEPEL has been awarded end of 2017 by the COFRAC (Comité Français d'Accréditation = French Committee Of Accreditation) with the ISO17025:2005 accreditation.

This accreditation certifies that SIEPEL fulfils the requirements of the standard NF EN ISO/CEI 17025 : 2005 and COFRAC rules of application for the activities of testing / calibration in electrical or electonical equipment or product subject to EMC testing.
Accreditation in accordance with the recognized internation standard ISO/IEC 17025 : 2005 demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (re. Joint IAF/ILAC/ISO Communiqué date Jan. 2009).


COFRAC is a signatory of the European co-operation for Accreditation (EA) Multilateral Agreement for accreditation for the activities covered by SIEPEL accreditation.

Shielding effectiveness

On Faraday cages / shielded rooms from 10 kHz to 40 GHz according to EN 50147-1.


In semi-anechoic chamber from

30 MHz to 1 GHz (NSA) and from

1 GHz to 18 GHz (S-VSWR) according to CISPR16-1-4.

Field Uniformity 

In semi-anechoic chamber from

26 MHz to 18 GHz according to

EN/CEI 61000-4-3.

The complete scope of accreditation can be found on with the accreditation number 1-6220.

Maintenance / Upgrade / Transfer


Strong of 33 years' experience in the maintenance of shielded rooms and anechoic chambers, SIEPEL is offering you a contract for the care of your facility. Our Maintenance Department will offer you a bi-annual or annual visit and a dedicated maintenance plan.

We attend to any shielded rooms and decide together the best way to maintain your facility for the years to come.

Depending on the current state of the shielded room or anechoic chamber, our expert will propose you a preventive maintenance plan or a curative one.

Our stock of spare parts allows us to be responsive and reactive to emergency requests.
A first-level training is also provided to assist you in the everyday upkeep of your facility.

Upgrade / Transfer:

SIEPEL engineers at the Design Office are here to assist you for the upgrade or the transfer of your shielded room or anechoic chamber.

Whether you are looking for a refurbishment to replace old EMC or Microwave absorbers or looking for an adaptation of your anechoic chamber to newly released standards, SIEPEL is here for you!

Regardless of the facility's original manufacturer, we also propose, at a competitive price, to transfer your chamber to a new site. An upgrade of your anechoic chamber to be compliant to new EMC standards can be done simulteanously.

Contact us to discuss about your future plans!

SIEPEL is the partner of choice when it comes to your site validation.

Any chamber, anywhere in the world!