Ensure that the electromagnetic field transmissions of your products comply to regulatory standards
Electric, magnetic and electromagnetic fields, or EMF, are one of the most common and fastest growing environmental influences. With every use of electric energy, electrical appliances and equipment become a source of EMF emission. As such, people are exposed to this complex mix of electric, magnetic and electromagnetic fields in their daily lives. As people increase their use of electronics, the concern with EMF emissions continues to grow.
There are two types of electromagnetic field transmission – wanted and unwanted. In the wanted electromagnetic field transmission, devices such as radio generate EMF for radio communication or radio determination. Other devices like appliances or industrial equipment generate unwanted EMF emissions. Devices such as microwaves uses electromagnetic fields internally but do not require external emission.
To comply with market requirements and avoid costly recalls, manufacturers must ensure the EMF emissions are within defined regulatory limits.
What is electromagnetic field (EMF) testing?
The purpose of electromagnetic field testing is to assess electronic and electrical equipment related to human exposure restrictions for electric, magnetic and electromagnetic fields. In scope are static, extremely low frequency and radio frequency fields encompassing the frequency range of 0 Hz to 300 GHz.
There are different regulatory limits for occupational and general public exposure. To measure the level of exposure, physical quantities, such as electric and magnetic field strength, magnetic flux density, power density and contact current, are measured and compared against reference levels. If measured quantities are higher than the reference levels, more detailed analysis is needed to access compliance with the basic restrictions for physical quantities including current density, internal electric field and specific absorption rate (SAR).
Why is electromagnetic field (EMF) testing important?
In the past decade, numerous electromagnetic field sources, including power lines, microwave ovens, household appliances, luminaries, computer and TV screens, security devices, radars, wireless devices, mobile phones and their base stations and most recently inductive charging pads for electronic equipment or electric vehicles, have become a health concern.
Electromagnetic field (EMF) compliance is a mandatory requirement in most markets including Europe, the U.S., Canada, China, Korea, Australia and New Zealand. Electromagnetic field testing helps you meet regulatory requirements, improve product safety and reduce the risk of costly non-compliance. Third-party EMF tests and conformity assessments also help strengthen your competitive position in the market.
Our services at a glance
- Magnetic field
- Electric field
- Electromagnetic field
- Induced current density due to the electric field (EMF for lighting equipment)
Specific absorption rate (SAR) testing
Other related services