What is classified under the HAZMAT class of "Explosives"?

The classification of "Explosives" under HAZMAT refers specifically to materials that can undergo rapid chemical reactions producing gas at high temperatures and pressures, which can result in an explosion. This category includes a wide range of substances that can cause explosions, including various types of explosives and ammunition designed for military or industrial use.

Materials classified in this category are subject to strict regulations and safety practices due to their potential for causing significant harm not only to people but also to the environment and property if not handled correctly. Explosives must be stored and transported under specific conditions to minimize risks associated with accidental detonation.

In contrast, the other categories listed include substances that, while they may pose dangers, do not fit the definition of explosives. Flammable solids ignite and can burn rapidly, but they do not explode. Compressed gases can pose risks if they escape or are exposed to heat, but they do not inherently cause explosions like explosives do. Oxidizing substances support combustion but are not classified as explosive materials themselves. Understanding these distinctions helps ensure that responders are equipped with the knowledge necessary for safe handling and response procedures in emergency situations.