Which of the following describes munitions grouped in explosive class/division 1.1?

Munitions categorized in explosive class/division 1.1 are characterized as severe hazards due to their potential to detonate and produce an explosive effect. This classification indicates that these materials are mass detonating explosives, meaning they can cause a large-scale explosion that affects more than one item in a single event. The inherent nature of these explosives makes them particularly dangerous, as they can generate a significant shockwave and shrapnel, posing serious risks to personnel and surrounding infrastructure.

In contrast, the other classifications describe materials with lesser degrees of risk. Minor hazards, for example, would typically relate to explosives that do not pose an immediate threat of mass detonation, while moderate hazards might include some degree of risk but not to the catastrophic extent associated with class 1.1 materials. The designation of "no hazards" is not applicable to any explosive subclass as all explosives inherently carry some level of risk.