What type of munitions is associated with explosive class/division 1.4?

The correct answer is small arms ammunition, which is categorized under explosive class/division 1.4. This classification includes items that pose a limited hazard, primarily requiring caution in handling and transportation but not considered highly explosive. Small arms ammunition is designed for individual or squad-level firearm systems and is designed to be safe under normal conditions of transport and use, indicating the lower risk associated with class/division 1.4 munitions.

When considering the other classifications, missiles, explosive projectiles, and chemical munitions typically present greater risks and have different explosive classifications due to their nature and use-case scenarios. Missiles, for instance, may fall under a different division due to their larger explosive potential and complexity. Explosive projectiles usually entail a higher risk of detonation upon impact, while chemical munitions are classified based on their toxic properties and potential hazards, which do not align with the criteria for class/division 1.4. This all illustrates how small arms ammunition specifically fits within the characteristics and classification of explosive class/division 1.4.