What term describes a hazardous material that remains as a solid under normal conditions?

The term that best describes a hazardous material that remains in a solid state under normal conditions is solid hazardous material. This classification encompasses a variety of substances that can pose risks due to their inherent properties, even in solid form. Solid hazardous materials can include toxic substances, reactive materials, or corrosive agents, and they can present significant dangers during transportation, storage, or disposal, necessitating proper handling procedures and safety precautions.

In contrast, flammable solids specifically refer to solid materials that can ignite and burn easily, not all solid hazardous materials fall into this category. Incompressible liquids pertain to substances that do not change volume significantly under pressure and are thus not applicable to solids. Stable gases, on the other hand, describe gaseous substances that do not react or change state under specific conditions; this clearly does not relate to solids. Thus, solid hazardous material aptly covers the broader category of hazardous materials that remain solid under typical environmental conditions.