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105
For Your Safety
8. What has the FDA done to measure the Radio Frequency energy coming
from tablets?
TheInstituteofElectricalandElectronicEngineers(IEEE)isdevelopingatechnical
standardformeasuringtheRadioFrequency(RF)energyexposurefromtabletsand
otherwirelesshandsetswiththeparticipationandleadershipofFDAscientistsand
engineers.Thestandard,“RecommendedPracticeforDeterminingtheSpatial-Peak
SpecificAbsorptionRate(SAR)intheHumanBodyDuetoWirelessCommunications
Devices:ExperimentalTechniques”,setsforththefirstconsistenttestmethodology
formeasuringtherateatwhichRFisdepositedintheheadsandbodiesoftablet
users.Thetestmethodusesatissue-simulatingmodelofthehumanheadandbody.
StandardizedSARtestmethodologyisexpectedtogreatlyimprovetheconsistency
ofmeasurementsmadeatdifferentlaboratoriesonthesametablet.SARisthe
measurementoftheamountofenergyabsorbedintissue,eitherbythewhole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tabletcomplieswithsafetyguidelines.
9. What steps can I take to reduce my exposure to Radio Frequency energy
from my tablet?
Ifthereisariskfromtheseproducts—andatthispointwedonotknowthatthere
is—itisprobablyverysmall.Butifyouareconcernedaboutavoidingevenpotential
risks,youcantakeafewsimplestepstominimizeyourexposuretoRadioFrequency
(RF)energy.Sincetimeisakeyfactorinhowmuchexposureapersonreceives,
reducingtheamountoftimespentusingatabletwillreduceRFexposure.Ifyou
mustconductextendedconversationsusingawirelessdeviceeveryday,youcould
placemoredistancebetweenyourbodyandthesourceoftheRF,sincetheexposure
leveldropsoffdramaticallywithdistance.Forexample,youcoulduseaheadsetand
carrythetabletawayfromyourbodyoruseawirelessdeviceconnectedtoaremote
antenna.Again,thescientificdatadoesnotdemonstratethattabletsareharmful.Butif
youareconcernedabouttheRFexposurefromtheseproducts,youcanusemeasures
likethosedescribedabovetoreduceyourRFexposurefromtabletuse.
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