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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 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.
US740GSG(eng).indd 53 2010.10.12 10:39:42 AM