The more severe hazards are identified on labels with which signal word?

The signal word "Danger" is used on labels to indicate the most severe hazards associated with a chemical or material. According to OSHA's Hazard Communication Standard (HCS), signal words are a key component of labeling that helps communicate the level of hazard present.

When "Danger" is present on a label, it signifies a high level of risk that could result in serious injury or death if proper precautions are not taken. This clear and straightforward warning helps individuals quickly recognize the seriousness of the potential threat, prompting them to use appropriate protective measures or to avoid the substance altogether.

In contrast, the other terms typically convey less severe hazards. For instance, "Warning" indicates a moderate level of hazard, which is less immediate than that indicated by "Danger." The terms "Careful" and "Stop" are not standard signal words defined by HCS for classifying chemical hazards, making them less effective for communicating danger levels in a hazardous materials context. Therefore, "Danger" clearly denotes the most severe hazards, aligning with regulatory standards for hazard communication.