Safety Guidelines
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
244
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