Potentially explosive environmentsSwitch your device off in potentially explosive environments, such asnear petrol pumps. Sparks may cause an explosion or fire resulting ininjury or death. Note restrictions in areas with fuel; chemical plants;or where blasting operations are in progress. Areas with a potentiallyexplosive environment may not be clearly marked. These usually areareas where you are advised to switch your engine off, below deck onboats, chemical transfer or storage facilities, and where the aircontains chemicals or particles. Check with the manufacturers ofvehicles using liquefied petroleum gas (such as propane or butane) ifthis device can be safely used in their vicinity.Certification information (SAR)This mobile device meets international guidelines for exposure toradio waves.Your mobile device is a radio transmitter and receiver. It is designednot to exceed the limits for exposure to radio waves (radio frequencyelectromagnetic fields), recommended by international guidelinesfrom the independent scientific organization ICNIRP. Theseguidelines incorporate substantial safety margins that are intendedto assure the protection of all persons regardless of age and health.The exposure guidelines are based on the Specific Absorption Rate(SAR), which is an expression of the amount of radio frequency (RF)power deposited in the head or body when the device is transmitting.The ICNIRP SAR limit for mobile devices is 2.0 W/kg averaged over 10grams of tissue.SAR tests are carried out with the device in standard operatingpositions, transmitting at its highest certified power level, in all itsfrequency bands. The maximum recorded SAR values for this deviceare:Maximum SAR value Frequency bandsused whenMaximum SAR valuewas recordedWhen held againstthe head1.05 W/kg over 10g GSM 90027