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Fire Endurance Test
After heat sensors and paper are placed
inside the safe, the unit is locked and exposed to a uniformly distributed
fire. The furnace is regulated to reach a maximum temperature of 1700°F for
a period of one hour, or 1850°F for two hours, then allowed to cool without
opening the furnace. The interior temperature is recorded throughout the
test and during the cooling period until a definite drop is shown and must
never exceed 350°F.
Once cooled, the unit is opened and examined
for usability. The units locking mechanisms and parts fastenings are
examined for security and the interior examined for visible evidence of
undue heat transmission
Explosion Hazard Test
The safe is locked and placed into a furnace
preheated to 2000°F. This temperature is maintained for 30 minutes (2 hour
test is 45 minutes) and if no explosion results, the unit is allowed to cool
without opening the furnace doors. Once cooled, the unit is opened and
examined for usability. The units locking mechanisms and parts fastenings
are examined for security and the interior examined for visible evidence of
undue heat transmission.
Fire Impact Test
After the explosion hazard test the safe is
removed from the furnace and within two minutes is dropped 30' onto a riprap
of brick on a heavy concrete base. After impact the unit is examined for
deformation, rupture of parts, damaged insulation and any other openings
into the interior of the unit. Once cooled, the unit is inverted and
reheated to 1550°F for a period of 30 min. (2 hour test: 45 min. at 1638°F).
Once cooled, the unit is opened and examined
for usability. The units locking mechanisms and parts fastenings are
examined for security and the interior examined for visible evidence of
undue heat transmission.
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