Once cooled, the unit is opened and examined for usability. Once cooled, the unit is inverted and reheated to 1550F for a period of 30 min. After impact the unit is examined for deformation, rupture of parts, damaged insulation and any other openings into the interior of the unit. The units locking mechanisms and parts fastenings are examined for security and the interior examined for visible evidence of undue heat transmission.Īfter 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.

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. The safe is locked and placed into a furnace preheated to 2000F. The units locking mechanisms and parts fastenings are examined for security and the interior examined for visible evidence of undue heat transmission The interior temperature is recorded throughout the test and during the cooling period until a definite drop is shown and must never exceed 350F. The furnace is regulated to reach a maximum temperature of 1700F for a period of one hour, or 1850F for two hours, then allowed to cool without opening the furnace. Then further down the page, are a description of the actual ratings given by ETL and UL labs to products that they test.Īfter heat sensors and paper are placed inside the safe, the unit is locked and exposed to a uniformly distributed fire. Below are a description of the types of tests that might be mentioned with specific products on this page. Independent laboratories test products to see that the promised fire protection is real.

Sentry 1250 safe