In late 2025, the European standards body CENELEC published some important new and updated EMC standards that affect how emissions and immunity testing is done:

The latest edition of EN IEC 55016-1-4:2025 is an updated version of one of the core EMC measurement standard This part of the CISPR 16 series defines the requirements for the equipment and test site arrangements used to measure radiated electromagnetic disturbances. In simple terms, it sets the rules for how labs must configure antennas, receivers, and test environments when checking emissions from electronic products.

The 2025 version is a technical revision rather than just a minor correction. It consolidates previous amendments and updates the wording, structure, and definitions to align fully with the current international IEC/CISPR edition. One of the key improvements is clearer terminology – particularly around grounding concepts and reference configurations. By tightening up these definitions, the standard reduces ambiguity in how test setups are interpreted and reported, which helps improve consistency between different test laboratories. Another important development is the refinement and expansion of measurement component specifications. The updated edition introduces or formalises requirements for certain high-frequency measurement accessories, including elements used for conducted disturbance measurements at higher frequencies than were historically emphasised. This reflects the reality that modern electronic devices operate at higher speeds and generate emissions over a broader spectrum.

There are also structural and drafting improvements throughout the document. While these may not change test limits, they make the standard easier to apply and bring it into line with modern formatting and drafting conventions used across IEC standards. Overall, the 2025 edition strengthens the technical foundation for radiated EMC testing and ensures that measurement methods remain suitable for today’s high-frequency, digitally intensiv electronic products.

The IEC 62153-4-7:2021/AMD1:2025 document is an amendment to an existing EMC test standard focused on how metallic cables, connectors and assemblies are tested for electromagnetic compatibility. Unlike many EMC standards that concentrate on complete products, this one drills down into components – especially cables and interconnect hardware – because these parts increasingly affect a product’s overall electromagnetic behaviour.

This 2025 amendment doesn’t reinvent the standard, but it updates and clarifies the original test methods to better align with real-world needs. As electronics evolve – with faster data rates, higher frequencies, and denser cabling – the old ways of testing aren’t always enough to reveal potential EMC problems. The amended version recognises this by refining how measurements should be made, described, and interpreted.

A key change is in how test configurations are defined and set up. The amendment gives clearer guidance on fixture arrangements and reference points for different types of cable assemblies. This matters because even small changes in how cables are mounted or positioned during testing can influence the measured emissions or susceptibility. The updated text helps prevent inconsistencies that could lead to differing results between labs.

Another practical improvement concerns frequency range coverage and measurement accuracy. With electronics increasingly operating across broader and higher frequency bands, the amendment expands or clarifies the relevant ranges for certain tests. It also tightens requirements on things like calibration and measurement resolution, so results are more reliable and comparable.

Finally, the update also brings the wording and structure of this part of IEC 62153 into closer alignment with related international EMC measurement standards. This alignment makes it easier for engineers and test labs to integrate IEC 62153-4-7 tests into wider EMC test plans without confusion or duplication.