What term describes the results of an explosion that does not produce an overpressurization?

The correct answer refers to low-order explosives, which are characterized by their slower reaction velocity and generally produce results that do not create the intense overpressure typically associated with high-order explosives. Instead of generating a shock wave, low-order explosives tend to produce a more subdued explosion, often resulting in a deflagration rather than a detonation. This means that the explosion burns rather than exploding abruptly, leading to less destructive force and a lower risk of widespread damage from overpressure.

Low-order explosives are often used in military and commercial applications where a controlled response is desirable, such as in some types of demolition work or munitions that are designed to incapacitate rather than obliterate targets. Understanding this concept is critical for tactical paramedics, who may need to assess and respond to scenes involving explosive devices accurately.

Conventional blasts typically involve high-order explosives, which are more likely to create the overpressurization effect. Vehicle-borne IEDs can utilize either high or low-order explosives, but they often result in significant overpressure due to the amount of material used. By contrast, the context of the question specifically highlights those explosives that do not create overpressurization, reinforcing the relevance of low-order explosives in this scenario.