unit 3 compliance emc test lab uk

Unit 3 Compliance anechoic chamberCentral to the operation of Unit 3 Compliance is our EMC test laboratory. We are well equipped to perform a wide range of tests and all testing is performed by experts. We can support you in many ways from quick look-see and pre-compliance tests through to final EMC measurements for self certification.

We are not UKAS accredited which allows us to offer our EMC testing services at a lower price than most test labs resulting in a good balance of quality and value. It also lets us help with practical advice and problem solving during testing. The results we generate are perfectly acceptable for use in your self declaration process for CE marking.

You are welcome to attend the testing of your products at our Bradford laboratory, during which all the tests and results will be explained clearly. Think of it as a mini EMC class every time! Alternatively, we are happy to work remotely if you send your equipment for testing via courier.

We keep you informed of progress with daily email updates, phone calls if something doesn’t go to plan, and a full report with interpretation of the results and valuable conclusions at the end of the process.

Clear communication and technical capability is the value of dealing with Unit 3 Compliance. We have the tools and the skills that you need for EMC success.

Test Capabilites

Our current test capabilities are listed below. Not only are these capabilities being expanded all the time but we can support other tests not listed here. Contact us to discuss your requirements.


  • Radiated Emissions – 9kHz to 18GHz
  • Conducted Emissions – 9kHz to 30MHz, mains port (1P and 3P up to 32A) and Ethernet ports
  • Flicker (EN 61000-3-3) and Harmonics (EN 61000-3-2) to 11A


  • ESD (EN 61000-4-2) to 16.5kV
  • Radiated RF (EN 61000-4-3) 80MHz to 2.7GHz, 10V/m
  • EFT (EN 61000-4-4) up to 4kV, on mains or I/O ports
  • Surge (EN 61000-4-5) up to 6kV 1.2/50us and 10/700us on mains or I/O ports
  • Conducted RF Immunity (EN 61000-4-6) to 10V
  • Dips and Interrupts (EN 61000-4-11)
  • Ringwave (EN 61000-4-12)
  • Automotive – ISO 7637-2, ISO 16750-2 conducted transients

Directives / Laws

EMC Product Standards

We can perform testing to a large number of worldwide product EMC standards which include, but are not limited to, the following:

  • ETSI EMC for Radio Equipment Standards – ETSI EN 301 489 series, ETSI EN 303 446-1 and -2 series
  • Generic EMC requirements (Residential) – EN 61000-6-1 and 61000-6-3
  • Generic EMC requirements (Industrial) – EN 61000-6-2 and 61000-6-4
  • Multimedia Equipment – EN 55032, EN 55035
  • Medical Devices – EN 60601-1-2
  • Rail – EN 50121-3-2, EN 50121-4
  • Automotive – EN 50498 aftermarket electronics for vehicles
  • Automotive – CISPR 25 / ISO 13766-1 / ISO 7637-2 / R10.06
  • Cable Network Equipment – EN 50083-2
  • Building Automation and Control Systems (HBES/BACS) EN 50491-5-1
  • Industrial, Scientific and Medical – EN 55011
  • Measurement, Control and Laboratory – EN 61326-1
  • Lighting – EN 55015
  • Household Appliances and Tools – EN 55014-1 and 55014-2
  • Gas detectors – EN 50270
  • Automotive – CISPR 25, EN 50498
  • ANSI C63.4 for FCC Part 15
  • Military MIL-STD-461 / Def Stan 59-411 (restricted to Radiated Emissions 30MHz to 6GHz, Conducted Emissions 9kHz to 100MHz)

Available equipment

  • 3m fully anechoic chamber for radiated emissions and RF immunity measurements
  • 5m x 5m screened room for immunity and conducted emissions measurements
  • Metallic bench for conducted RF immunity testing
  • Surge and EFT test rack
  • ESD test station
  • Mains dips, interrupts, flicker and harmonics test rack
  • Environmental and vibration test