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signs to turn off wireless devices such as your phone or other radio
equipment.
Areas with potentially explosive atmospheres include fueling areas,
below decks on boats, fuel or chemical transfer or storage facilities,
and areas where the air contains chemicals or particles, such as
grain, dust, or metal powders.
Blasting Caps and Areas
Turn off your mobile phone or wireless device when in a blasting
area or in areas posted turn off “two-way radios” or “electronic
devices” to avoid interfering with blasting operations.
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