Lessons from Proficiency Testing in EMC

Since 2016, METAS organized numerous proficiency testing schemes for EMC laboratories. This experience demonstrated the benefit of the proficiency testing. This publication aims to provide some examples of the problems, or of the inappropriate application of the EMC testing, that were observed during the interlaboratory comparison campaigns. It can be emphasised that these findings have always been discussed with the participants and that it led to an improvement of their test setups and procedures. These examples might also be beneficial to the whole EMC community.