1.1
1
The symbol for a mass detonation hazard using the USAF system is an orange octagon with the #1 in the center. This differs from the other three fire symbols.
1.3
Class 3
Aerial flares are classified as DOT Class 1.4G explosives. This classification indicates that they are regarded as "minor explosive devices" that pose a low risk, primarily used in signaling and distress situations. While they can create a fire hazard, they are designed to minimize the potential for a mass detonation.
A non-mass explosion fragment producing hazard class/division is typically classified as either Class 1.4 or Division 1.4.
3
Division 1.1 of class 1 explosives has a mass explosion hazard, which means they can produce a large explosion. These substances are extremely dangerous and can cause widespread devastation.
1.2
DOT Hazard Class 1 Division 3 refers to a category of explosives that are classified as "Explosives, Mass Explosion Hazard," specifically those that have a low probability of mass detonation but can still present a significant risk. These materials are capable of producing a powerful explosion but are designed to be stable under normal conditions. Examples include certain types of fireworks and some low-order explosives. Proper handling, storage, and transportation regulations are critical to ensure safety when dealing with these materials.
Hazard Class 3
Class 1 materials are explosives.Materials that have an explosive hazard are in Hazard Class 1.