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101
Safety
for measuring the radio
frequency 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 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 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
radio frequency 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 radio frequency
energy (RF). Since time is a key
factor in how much exposure a
person receives, reducing the
amount of time spent using a