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Low Frequency Electric and Magnetic fields (EMF)

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The EU Recommendation (1999/519/EC) was introduced in 1999. It provides basic restrictions to protect the general public from EMF exposure.

The EMF at Work Directive (2004/40/EC) protects workers from the risks arising from the exposure to EMF in the workplace. It is not a directive required for CE marking; rather it is part of the EU Occupational Health and Safety regulations.

However, for household products the EMF testing is covered under the LVD and is a required test standard for CE marking.  In the US, restrictions are found from the FCC.

Basic limits for EMF from Household products according to EN 62233:

 

Basic restrictions for electric, magnetic and electromagnetic fields

(0 Hz to 300 GHz)

 


Frequency Range
Magnetic flux density


mT
Current density


mA/m2
r.m.s
Whole body average
SAR


W/kg
Localized SAR
(head and trunk)

W/kg
Localized
SAR
Limbs


W/kg
Power density,
S


W/m2

0 Hz
40





>0-1 Hz

8




1-4 Hz

8/f




4 -1000 Hz

2




1000 Hz -100 Hz

f/500




100 kHz- 10 MHz

f/500
0,08
2
4

10 MHz – 10 GHz


0,08
2
4

10 -300 GHz





10

f is the frequency in HZ
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