Samsung SCH-3550 - Manual (Page 98)

6WTP QHH ;QWT 2JQPG KP &CPIGTQWU #TGCU
6WTP 1HH ;QWT 2JQPG +P &CPIGTQWU 1T 2QUVGF #TGCU
You must turn off your phone in dangerous areas or any area
where posted notices so require. For example, to avoid
interfering with blasting operations, you should turn off your
phone when in a blasting area or in other areas with signs
indicating that two-way radios should be turned off.
Construction crews use remote-controlled RF devices to set off
explosives.
Turn off your phone when you are in any area with a potentially
explosive atmosphere. It is rare, but your phone or its
accessories could generate sparks. Sparks could cause an
explosion or a fire resulting in bodily injury or even death.
Areas with a potentially explosive atmosphere are often, but
not always clearly marked. They include fueling areas such as
gas stations; below deck on boats; fuel or chemical transfer or
storage facilities; areas where the air contains chemical or
particles such as grain, dust, or metal powders; and any other
area where you would normally be advised to turn off your
vehicle engine.
5VQTKPI ;QWT 2JQPG
You must not store or carry your phone, its parts, or accessories
in the same compartment or other area where there flammable
liquids, gases, or explosive or flammable materials.