Laboratories (UL) - UL is a non-profit, non-bias agency that tests
and rates the safety and performance of consumer products. Safes
that have earned specific UL ratings will carry a UL label which
designates the product's security and fire-protection ratings.
- This is the UL term for testing time which is spent trying
to break into a safe using tools such as diamond grinding wheels,
high-speed drills with pressure applying devices, or common
hand tools such as hammers, chisels, saws, and carbide-tip drills.
If a safe has been rated with a 30-minute net working time,
(TL30), the rating certifies that the safe successfully withstood
a full 30 minutes of attack time with a range of tools.
- This rating means the safe provides a combination lock and
minimal theft protection.
Security Container rating (RSC)
- This UL rating is based on testing conducted for a net working
time of five minutes, on all sides, with a range of tools.
- The TL-15 rating means the safe has been tested for a net
working time of 15 minutes using high speed drills, saws and
other sophisticated penetrating equipment.
rating - A product carrying the TL-30 security label
has been tested for a net working time of 30 minutes with the
same types of tools mentioned above.
- The TL-30 (30-minute) test is conducted on all six (6) sides
of the safe.
- The TRTL rating designates a safe which successfully resisted
30 minutes of net working time with a torch and a range of tools
which might include high speed drills and saws with carbide
bits, pry bars, and other impact devices.
- This exclusive service assures that the customer is buying
a unit that is exactly like the one that successfully passed
The UL impact test calls for the safe to be heated to 1550 degrees
for 30 minutes (1638 degrees for a 2-hour fire rated safe) then
dropped onto concrete rubble from a height of 30 feet. The safe
is then turned upside down and reheated for another 30 minutes
(45 minutes for a 2-hour fire rated safe). During this process,
it must maintain its integrity and protect all contents in order
to pass the UL impact test.
- All UL fire-rated safes must undergo this test, during which
the unit is inserted into a pre-heated 2000 degree oven. If
the safe is not constructed properly, the rapid heating will
likely cause an explosion.
- Fire resistant, unrated insulated safe
- This product is awaiting UL approval.
350 1/2-hour fire rating
- During this test, the safe is heated for one-half hour to
reach an exterior temperature of 1550 degrees. Because paper
will begin to char at approximately 400 degrees, the unit being
tested must maintain an interior temperature of less than 350
degrees during heat-up and cool-down testing in order to earn
350 1-hour fire rating
- To earn this rating, the safe is heated for one hour to reach
an exterior temperature of 1550 degrees, then put through the
cool-down test. During this time the safe must maintain an interior
temperature of less than 350 degrees.
This procedure is a key part of UL's fire testing procedures.
After a one- or two-hour fire rating test, the safe is left
in the oven for cool-down time with the heat turned off. Because
of the intensive heat of one- and two-hour tests, the temperature
inside the safe will continue to rise for up to one hour after
the oven is turned off. To pass UL testing, the safe's interior
temperature may not exceed 350 degrees at any time during heat-up
or cool-down procedures.
350 1-hour fire & impact label
- The safe has passed both UL impact testing and Class 350 1-hour
fire testing (see above).
350 2-hour fire rating
- The safe is heated for two hours to reach an exterior temperature
of 1550 degrees and must maintain an interior temperature of
less than 350 degrees to earn this rating. Class 350 2-hour
rating and impact label - The safe has passed both UL impact
testing and Class 350 2-hour fire testing (see above).
- This service allows a UL inspector to drop in unannounced
and at any time to check that all units at a manufacturing site
are being built under the same construction methods used for
previously tested units.