What is a hazardous material classification?

Hazardous material classification refers to the systematic categorization of substances based on their physical and chemical properties, which allows for the identification of their potential hazards. This classification is crucial for safety measures and regulatory compliance, as it informs how materials should be handled, stored, transported, and disposed of. By understanding a material's properties, such as flammability, reactivity, and toxicity, emergency responders and industrial operators can implement appropriate safety protocols and respond effectively in the event of a spill or exposure.

The other options do not accurately describe hazardous material classification. Identifying non-harmful substances does not pertain to the categorization of hazardous materials. Measuring chemical reactions is a separate scientific process that does not focus on classification but rather on reactions' specifics. The process of storing materials safely, while related to hazardous materials, is more about the management and safety protocols rather than the classification itself. Therefore, recognizing that classification is based on physical and chemical properties is fundamental to understanding how to work safely with hazardous materials.