The munitions associated with explosive class/division 1.4 are?

Explosive class/division 1.4 pertains to materials that present a minor hazard. Items classified under this division are safe to handle under certain conditions, and any potential risk of explosive events are considered to be significantly limited. Among the options provided, small arms ammunition falls under this classification.

Small arms ammunition includes rounds commonly used in handguns and rifles, which generally have low risks associated with handling and transportation when compared to more volatile explosives. These munitions are designed to ignite or explode only under specific conditions, such as being fired from a weapon.

In contrast, missiles, explosive warheads, and blasting caps would typically belong to higher classifications because they pose greater risks and potential for significant explosions under less controlled circumstances. These items are designed for more aggressive and specific explosive functions, leading them to be classified as a higher hazard risk and thus not fitting within the 1.4 classification.