Which item would typically be included in a non-mass explosion hazard?

A non-mass explosion hazard involves items that pose a risk of explosion but do not have the characteristics to cause widespread destruction or massive detonation. Grenades are a good example of this category. They are designed to explode on impact or after a short delay, causing localized damage to a specific area and primarily intended for use in close-combat situations.

In contrast, items like missiles, rockets, and TNT represent mass explosion hazards. These are more powerful and can lead to widespread destruction and collateral damage due to their larger payload and potential for chain reactions when detonated. Missiles and rockets can carry large explosive warheads designed to impact targets from significant distances, while TNT, as a high explosive, is notorious for its wide-reaching blast radius. Thus, grenades are classified under non-mass explosion hazards due to their intended usage and controlled explosive effects.