What does a yellow placard indicate on hazardous material?

A yellow placard on hazardous material indicates a reactivity hazard. This system is part of the National Fire Protection Association (NFPA) labeling system, which uses color-coded placards to provide information about the hazards associated with various materials.

In this context, a yellow placard signifies that the material can undergo hazardous reactions under certain conditions. This includes the potential for an explosive reaction, or a reaction that can result in the release of harmful gases or increased temperatures. Understanding the significance of a yellow placard is crucial for individuals who handle or may come into contact with these materials, as it informs them about the necessary precautions to take in order to ensure safety.

Being aware of these classifications helps personnel prepare and respond effectively to situations involving hazardous substances, minimizing risk during storage, transportation, and in the event of an incident.