Samsung SCH-A630DAVXAR - Manual (Page 150)

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Section 10
do so. Hospitals or health care facilities may be using
equipment that could be sensitive to external RF energy.
Vehicles
RF signals may affect improperly installed or
inadequately shielded electronic systems in motor
vehicles. Check with the manufacturer or its
representative regarding your vehicle. You should also
consult the manufacturer of any equipment that has been
added to your vehicle.
Posted Facilities
Switch your phone off in any facility where posted notices
require you to do so.
Potentially Explosive Environments
Switch your phone off when in any area with a potentially
explosive atmosphere and obey all signs and instructions.
Sparks in such areas could cause an explosion or fire
resulting in bodily injury or even death.
Users are advised to switch the phone off while at a
refueling point (service station). Users are reminded of
the need to observe restrictions on the use of radio
equipment in fuel depots (fuel storage and distribution
areas), chemical plants or where blasting operations are in
progress.
Areas with a potentially explosive atmosphere are often
but not always clearly marked. They include below deck
on boats, chemical transfer or storage facilities, vehicles
using liquefied petroleum gas (such as propane or
butane), areas where the air contains chemicals or
particles, such as grain, dust or metal powders, and any