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FDA scientists and engineers.
The standard, ‘Recommended
Practice for Determining the
Spatial- Peak Specific Absorption
Rate (SAR) in the Human Body
Due to Wireless Communications
Devices: Experimental Techniques,
sets forth the first consistent test
methodology for measuring the
rate at which RF is deposited
in the heads of wireless phone
users. The test method uses
a tissuesimulating model of
the human head. Standardized
SAR test methodology is
expected to greatly improve the
consistency of measurements
made at different laboratories
on the same phone. SAR is the
measurement of the amount of
energy absorbed in tissue, either
by the whole body or a small
part of the body. It is measured
in watts/kg (or milliwatts/g) of
matter. This measurement is used
to determine whether a wireless
phone complies with safety
guidelines.
9. What steps can I take to reduce
my exposure to radiofrequency
energy from my wireless
phone?
If there is a risk from these
products - and at this point we
do not know that there is - it is
probably very small. But if you are
concerned about avoiding even
potential risks, you can take a
few simple steps to minimize your
exposure to radiofrequency energy
(RF). Since time is a key factor
in how much exposure a person
receives, reducing the amount
of time spent using a wireless
phone will reduce RF exposure.
If you must conduct extended
conversations by wireless phone
every day, you could place more
distance between your body
and the source of the RF, since
the exposure level drops off
Safety Guidelines