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FIRE RATINGS
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.
| FIRE RATINGS |
|
UL rating
Underwriters' Laboratories, Inc. |
for
Sentry and AMSEC
Fire-resistant Safes |
1 or 1/2 Hours UL
rating -
Class 125 or Class 150
|
Maintain an interior
temperature less than 125F or 150F and an interior relative humidity
less than 85% for class 150 or 80% for class 125, when exposed to
fire as per the Standard Time Temperature Curve for hours to 1700F.
Successfully undergo all other requirements for the Fire Endurance
Test, the Explosion Hazard Test, the Humidity Test, and the Fire
& Impact Test (separately or combined). Basically, no explosion
through 30 minutes of exposure to a 2000F fire, an immediate 30 foot
drop test, and a standard reheating for 30 minutes to 1550F. |
4 Hours UL rating -
Class 350 |
Maintain an interior
temperature less than 350F when exposed to a fire as per the
Standard Time Temperature Curve for 4 hours to 2000F. Successfully
undergo all other requirements for the Fire Endurance Test, the
Explosion Hazard Test and the Fire and Impact Test (separately or
combined). Basically, no explosion through 30 minutes of exposure to
a 2000F fire, 30 minutes of standard exposure to 1700F, and
immediate 30 foot drop test and a Standard reheating for 60 minutes
to 1700F. |
2 Hours UL rating-
Class 350 |
Maintain and interior
temperature less than 350F when exposed to a fire as per the
Standard Time Temperature Curve for 2 hours to 1850F. Successfully
undergo all other requirements for the Fire Endurance Test, the
Explosion Hazard Test, and the Fire and Impact Test (separately or
combined). Basically no explosion through 30 minutes of exposure to
a 2000F fire, 15 minutes of standard exposure to 1638F, and
immediate 30 foot drop test and a Standard reheating for 45 minutes
to 1638F. |
| ETL Semko Fire Testing
|
for
Sentry Fire-resistive Gun Safes
Sentry® Fire-Safe®
products with an ETL rating have been tested by the independent
testing firm ETL Semko and verified to be in compliance with the
manufacturer's specifications for fire endurance.
|
| ETL 1/2-Hour Fire
Endurance Test |
Sentry® Fire-Safe®
products are subjected to temperatures of 1400° F (760° C) for 1/2
hour. The interior remains below 350° F (177° C). |
| Mercury Fire Protection |
for American Security
Fire-resistive Gun Safes |
Class III
|
Exposed to 1550F for 120
minutes and maintained an inside temperature of less that 350F
|
| Class II |
Exposed to 1275F for 60
minutes and maintained an inside temperature of less than 350F |
| Class I |
Exposed to 1200F for 45
minutes and maintained an inside temperature of less than 350F |
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