How is hazardous material typically classified?

Hazardous materials are typically classified by their physical state, which includes classifications such as solids, liquids, and gases. This classification is crucial for understanding how the materials interact with the environment and how they can pose risks to health and safety. For instance, the physical state can determine how a hazardous material behaves under various conditions, such as whether it can easily evaporate into the air or if it presents a risk of spills and leaks.

While other factors like chemical structure can certainly influence the handling and risks associated with hazardous materials, the physical state is a more immediate and practical classification that impacts emergency response strategies, storage requirements, and transport regulations. Understanding the physical state helps first responders assess the necessary precautions and responses in the event of a hazardous material incident.