Which class of hazardous materials includes flammable solids?

The classification of hazardous materials is based on specific characteristics, and flammable solids fall under Class 4. Flammable solids are materials that can readily ignite and sustain combustion, posing a significant fire hazard. This class encompasses a variety of substances that can burn quickly and may produce flammable dust or chips.

Class 1 materials pertain to explosives; Class 2 includes gases, which are either compressed, liquefied, or dissolved under pressure; and Class 3 encompasses flammable liquids. Each class is associated with distinct properties and risks, but flammable solids, due to their potential to ignite and cause fires, are specifically categorized under Class 4. This understanding is crucial for proper handling, storage, and emergency response protocols in dealing with hazardous materials.