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CISPR 25 EMC Testing

UK labs testing automotive components and modules to CISPR 25.

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Element Materials Technology Warwick Ltd (Malvern)

Element Materials Technology Warwick operates a UKAS-accredited EMC laboratory (number 0026) from Malvern, Worcestershire (previously TRaC Global), as part of the wider Element global testing network. The site is a Notified Body for CE Marking (including EMC) and holds 7 semi-anechoic chambers, 3 transient chambers and a 20-metre large equipment chamber for automotive and military vehicle testing, serving aerospace, defence, automotive, railway and medical-device customers.

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3C Test Ltd

3C Test has operated as a UKAS-accredited EMC laboratory (number 1204) since before its 1996 incorporation, tracing its roots to 1988, and has been based at Silverstone Technology Park since 2006. The lab became part of Applus+ Laboratories in 2018, and runs 15 EMC facilities across two Silverstone sites, including two full-vehicle EMC chambers and semi-anechoic/reverberation chambers for component testing, covering CE/UKCA, FCC, ISED, VCCI, UNECE R10 vehicle type approval, and Taiwan's VSTD 56-4, for automotive, aerospace/defence, IT and radio-equipment customers. It is also recognised by Ford, GM, Jaguar Land Rover and Stellantis as an approved test lab for automotive components.

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Kiwa Electrical Compliance (Brentwood)

Kiwa Electrical Compliance runs a UKAS-accredited (2360) EMC and radio test laboratory at Arnolds Court, Brentwood, Essex, trading under that name since its rebrand from RN Electronics. Testing covers international schemes including CE, UKCA, FCC, ISED and VCCI, spanning emissions, immunity and pre-compliance work for sectors from IT and medical devices to gaming and automotive accessories. Equipment too large for the lab can be tested on-site. Kiwa's EMC laboratory in Blackwood, South Wales, has its own listing.

Element Materials Technology Warwick Ltd (Wimborne)

Element Wimborne is an EMC test laboratory at Woolsbridge Industrial Park, Three Legged Cross, near Wimborne in Dorset, operated by Element Materials Technology. It tests aerospace, military, automotive, marine, rail and commercial products to standards including MIL-STD-461, DEF STAN 59-411, RTCA DO-160, CISPR 25, ISO 11452, ISO 7637 and UNECE Regulation 10. Facilities include two 3 m CISPR 16 semi-anechoic chambers, a 3 m fully anechoic chamber, reverberation chambers and an indirect lightning laboratory. Radiated emissions are measured from 9 kHz to 18 GHz and radiated susceptibility to 200 V/m. The laboratory holds UKAS ISO/IEC 17025 accreditation.

Compliance Engineering Ltd

Compliance Engineering Ltd, part of Compliance Engineering International (CEI), runs an EMC test site at Randalstown, Co Antrim, accredited to ISO/IEC 17025 by INAB (scope 088T). Its accredited scope there covers emissions, immunity, ESD, fast transients, surge, dips, magnetic field and harmonics testing, including vehicle EMC to CISPR 25 and UN Regulation 10, and railway EMC. Radio and electrical safety testing are accredited at CEI's other site at Dunshaughlin, Co Meath, in the Republic of Ireland, so confirm which site will carry out your testing.

EMC Hire Ltd

EMC Hire Ltd operates an EMC test facility in Shefford, Bedfordshire, offering pre-compliance and self-certification testing with or without a test engineer, and on-site EMC testing at customer premises. Tests cover emissions and immunity to commercial, automotive and defence standards using a GTEM cell and a hire fleet of EMC and RF equipment. The company also provides EMC training, RF EMF surveys and problem resolution support, with consultancy through its partner WEMEC Ltd.

Drive System Design Ltd

Drive System Design is a powertrain engineering consultancy in Warwickshire with a 144 cubic metre semi-anechoic EMC chamber at its Wellesbourne facility. The chamber is built to CISPR 25 and designed for high voltage component testing, measuring radiated and conducted emissions on power electronics and electrified propulsion systems for automotive, aerospace and defence customers. An engineering team supports diagnosis and resolution of EMC issues. The company is part of the Hinduja Tech group.

Pektron Group Ltd

Pektron Group Ltd, an electronics manufacturer in Derby, offers contract EMC and environmental testing to other companies from its on-site laboratory, UKAS accredited as Testing Laboratory No. 23412. The purpose-built EMC chamber covers radiated and conducted emissions, radiated and conducted immunity, ESD and bulk current injection, mainly to automotive standards including CISPR 25 and ISO 11452. Engineers provide pre-compliance evaluation, design verification and troubleshooting support alongside climatic, vibration and ingress testing.

HORIBA MIRA Limited

HORIBA MIRA operates UKAS-accredited EMC facilities (laboratory 1105) at its Nuneaton proving ground, running testing around the clock as part of the UK's largest independent automotive development centre. The company has continued to expand its EMC capability for electric and connected-vehicle testing, including work carried out alongside EM Test and its parent company Ametek.

Skyships Automotive Limited

Skyships Automotive runs a UKAS-accredited (ISO/IEC 17025, laboratory 29498) automotive EMC facility in Chelmsford, comprising three semi-anechoic chambers, a bulk current injection chamber, a humidity-controlled ESD room and dedicated conducted-immunity test stands. Testing covers CISPR 25 emissions from 150kHz to 6GHz, ISO 11452 radiated and near-field immunity, ISO 7637 and ISO 16750 transients, and ISO 10605 ESD up to 25kV, alongside the company's own work designing cockpit electronics for specialist vehicle manufacturers.

TUV SUD Limited

TÜV SÜD holds UKAS accreditation (laboratory 0141) for EMC testing at its Fareham site, part of the wider global TÜV SÜD testing, inspection and certification network. The Hampshire lab (plus a sister EMC lab in Bearley, Warwickshire) runs semi-anechoic and fully-anechoic chambers covering everything from small appliances to large defence-industry equipment, with testing available in-lab, on customer premises or wherever the product is installed.

Electromagnetic Testing Services Limited

Electromagnetic Testing Services holds UKAS accreditation (schedule 4416) with a flexible scope covering commercial and automotive EMC testing, operating from Stebbing, Essex since incorporation in 1992. The lab's work spans commercial, industrial, medical, railway and military product testing alongside EMC consultancy.

CISPR 25 EMC testing in the UK measures the radio frequency emissions from vehicle components and modules, to protect radio reception on board the vehicle. It is the standard most vehicle manufacturers name for component emissions, often alongside ISO 11452 for immunity and ISO 7637 for transients, and their own EMC specifications on top.

When you shortlist, check which edition of CISPR 25 your customer specifies, whether the lab tests conducted and radiated emissions in an absorber lined chamber sized for your harness, and whether its accreditation schedule lists CISPR 25 for the methods you need. If your customer has its own specification, name it in your enquiry.

Use the filters to narrow by accreditation and test type, then shortlist and send one enquiry to all of them.

Related pages: Automotive EMC Testing, Full Compliance Testing.

Frequently Asked Questions

What does CISPR 25 cover?

Radio frequency emissions from electronic components and modules fitted to vehicles, measured so they do not disturb receivers on the same vehicle.

Is CISPR 25 the same as UN Regulation 10?

No. UN Regulation 10 sets the EMC requirements for vehicle type approval. CISPR 25 is a test standard for component emissions that vehicle manufacturers and Regulation 10 refer to.

Which edition should I test to?

The one your customer or contract names. Editions differ in limits and methods, so check the lab's schedule covers that edition.

Do I also need immunity testing?

Usually. Vehicle manufacturers normally ask for immunity tests such as ISO 11452 and transient tests such as ISO 7637 as well.

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