To get the 2 hour fire rating, this data safe had to keep an interior temperature less than 125F and an interior relative humidity less than 80% (for class 125), when exposed to fire as per the Standard Time Temperature Curve for 2 hrs to 1850F. To receive the impact rating, the safe had to remain shut and not explode through 30 minutes to exposure to a 2000F fire and immediate 30 foot drop test and reheating for 45 minutes to 1638F. The safe also met all other requirements for the Fire Endurance Test, Explosion Hazard Test, Humidity Test, and Fire and Impact Test. Learn More