
Step Two of the Comtest Five-Step Process: Design
How to find the perfect test chamber without any stress? In this post, we delve into step 2 of our Worry-Free Five-Step Process: detailing a chamber design with Britt Links from our Design Department.

In-house pretesting is a wise investment that saves time and money. In a series of five posts, our specialists share trends and developments for 2025. This week, Technical Consultant Uliana Trucchi will discuss the future of in-house pretesting for OEMs.
Uliana: “More and more products contain electronics that require testing. Many OEMs use test houses to pretest their products before the final certification. That creates a challenge because test houses are sometimes hard to book quickly, and the out-of-pocket costs pile up. I predict that more and more OEMs will consider in-house pretesting to secure their time-to-market and control costs. And honestly, you do not need to go to a test house for every step in the product development.”
Can certification be done in-house as well? Uliana: “OEMs can self-certify, but you have to be confident and well-prepared with a good correlation between the test executed in your pre-compliant chamber and the fully compliant one at the final certification body, and the investment in a pre-compliant chamber is doable. However, to be sure you correlate correctly, send your products to an external test house occasionally.”
The photo shows an example of a pre-compliant chamber we built in Grenoble (F).
Are in-house pretesting and self-certification options for you? Contact Marc Le Roy, Uliana Trucchi, Vincent van de Vrie, or Hanneke Mertens – van Veen to find out.