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Council on Radiation Protection
and Measurement. The exposure
limit takes into consideration the
body's ability to remove heat from
the tissues that absorb energy from
the wireless phone and is set well
below levels known to have effects.
Manufacturers of wireless phones
must report the RF exposure level
for each model of phone to the FCC.
The FCC website (http://www.fcc.
gov/oet/rfsafety) gives directions
for locating the FCC identification
number on your phone so you can
find your phone's RF exposure level
in the online listing.
8. What has the FDA done to
measure the radiofrequency
energy coming from wireless
phones?
The Institute of Electrical and
Electronic Engineers (IEEE) is
developing a technical standard
for measuring the radiofrequency
energy (RF) exposure from wireless
phones and other wireless handsets
with the participation and leadership
of 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.
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