
These are the Top 4 EMC Chambers for 2025
This chamber, which we built for testing Envirotainer’s containers to protect medicines, is larger than you might think. “The team from Envirotainer, a global leader in temperature-controlled logistics for biopharmaceuticals, approached us in 2022 to build a new ferrite chamber to test these containers for shipping by air, which requires DO-160 compliance,” explains Uliana Trucchi, our Technical Consultant for this project.
Neglecting proper maintenance of test chamber doors can result in considerable performance loss. Our Service Engineer, Edwin Van Der Ploeg, explains the associated risks and offers guidance on mitigating them.
Edwin: “When I carry out an H-Field measurement, I measure the doors four times across seven points at varying frequencies. During these measurements, I verify whether these seven points comply with the standards. When these points do not exhibit radiation within the standards, it is often due to dirt. Ideally, you want 100 per cent steel on steel without any interference from other materials, such as dirt, which creates unwanted isolation. When testing at higher frequencies, dirt significantly reduces contact between the leaf and the door frame.”
So what do you advise, Edwin?
Edwin: “The section of the doorpost in the photograph I’m referring to is known as finger stocks and is a typical area where dirt, dust, corrosion, liquids, and grease create issues. The challenge is that some forms of contamination are not visible to the naked eye. Prevention is crucial; the best approach is to inspect the doors annually. You wouldn’t want to disassemble the door and replace all its components.”