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FDA and the other federal health
and safety agencies. The FCC limit
for RF exposure from wireless
phones is set at a Specific
Absorption Rate (SAR) of 1.6 watts
per kilogram (1.6 W/kg). The FCC
limit is consistent with the safety
standards developed by the
Institute of Electrical and Electronic
Engineering (IEEE) and the National
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 Radio Frequency
energy coming from wireless
phones?
The Institute of Electrical and
Electronic Engineers (IEEE) is
developing a technical standard for
measuring the Radio Frequency
(RF) energy 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 tissue-
simulating 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
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