What is classified as Class 4 hazardous materials?

Class 4 hazardous materials are classified specifically as flammable solids. This category includes materials that can ignite easily and can sustain combustion under normal conditions, either through friction, absorption of moisture, or a reduction in pressure. These substances are identified as presenting a fire hazard, and their safe transport and storage require special handling procedures to minimize risks.

Flammable liquids are classified under a different category, Class 3. Oxidizers fall under Class 5, which includes substances that can cause or enhance the combustion of other materials. Corrosives, associated with Class 8, are materials that can cause damage to living tissue or severely corrode materials. Understanding these classifications is crucial for ensuring safety in transportation and handling of hazardous materials.