What is EMC testing? Why is it needed? Who performs EMC testing? How is it done? These are some of the most common questions surrounding EMC testing. In this blog post, you will learn about the how, what, who and why of EMC testing.

Why Is EMC Testing Needed?

Every electronic component emits some level of electromagnetic energy. This energy/radiation is capable of interfering with the functioning of other electronic appliances nearby.

This is why all the components and devices that produce any level of electromagnetic radiation are required to be tested in order to ensure that their electromagnetic energy emissions are within the approved limits.

Also, testing is done to make sure that the product’s functioning is not affected due to electromagnetic interference from other electronic sources.

One of the biggest reasons for EMC testing is that it ensures the safety of the electronic equipment as well as the people who depend on the equipment.

For example, certain medical equipment is capable of producing huge amounts of radiation and if that is not contained, it could cause problems for other equipment. 

Another good example is a microwave oven. A microwave needs to contain the electromagnetic energy within the device itself as the electromagnetic energy produced by the microwave can affect the performance of smartphones or other electronic devices nearby.

Guide How, What, Who Why EMC Testing

This is why there are agencies/authorities in each region that are responsible for enacting and regulating a variety of EMC standards.

All the devices capable of generating electromagnetic energy are required to adhere to the appropriate standards as determined by the regulators in that region. In Australia, this responsibility lies with the Australian Communications and Media Authority.

What Is EMC Testing?

EMC testing encompasses two different types of tests including emissions testing and immunity testing.

Emission Testing: These tests refer to the measurement of electromagnetic energy emitted by the electronic component. A variety of test methods and measurements are used as per the required standards for emissions testing.

There are two types of emissions: conducted emissions and radiated emissions. Conducted emissions refer to the energy transferred through a conductive path whereas radiated emissions refer to the energy transferred through the air.

Immunity Testing: These tests are focused on measuring the ability of the component or a product to keep functioning under external electromagnetic interference.

These tests are performed with the help of simulated real-life situations. Immunity testing is typically needed for products that are to be sold in Europe.

How Is EMC Testing Done?

The first step in this process is deciding the EMC standards that apply to that particular product. There are numerous standards and not all the standards apply to all the products.

Also, there is a specific hierarchy of standards and the product manufacturer needs to ensure that their product complies with the appropriate standards. It’s a good idea to get in touch with an accredited test lab such as Compliance Engineering to learn more about which particular standard is applicable to your product.

A variety of tests are conducted to measure the electromagnetic emissions as well as the immunity of the product. It is important to ensure that the test sites and test equipment conform to the technical specifications as outlined in the standards. The methods that are required to be used for EMC testing are outlined in the relevant EMC standards.

Guide How, What, Who Why EMC Testing

Who Does EMC Testing?

EMC testing should always be performed by an accredited test lab such as Compliance Engineering. It is important to keep in mind that not all test labs are capable of conducting all the required tests.

Also, not all the test labs are accredited for all the standards. Therefore, you need to make sure that the EMC testing laboratory you are planning to choose has the right accreditation for the EMC standards that apply to your product.

A number of methods are used for testing in order to show compliance. You will need to submit a Declaration of Compliance as part of the compliance records.

This declaration is based on the test report you get from the testing laboratory. This is why it is important to choose the right testing laboratory.


Overall, EMC testing is required for all the products that emit electromagnetic energy. All products need to meet the appropriate EMC standards as outlined by the regulatory authority in that particular region.

This is why you need to choose the right EMC testing laboratory to ensure that your product is compliant with the appropriate EMC standards.

Get in touch with the experts at Compliance Engineering to learn more about EMC testing and compliance and to ensure the reliable and safe operation of your product.

Please call us today at Compliance Engineering on + 61 3 9763 3079 or leave an enquiry.