Which two signal words are used on chemical labels to indicate hazard severity?

The two signal words used on chemical labels to indicate hazard severity are "Danger" and "Warning." These terms are part of the Globally Harmonized System (GHS) of Classification and Labeling of Chemicals, which aims to ensure that information about physical hazards and health hazards is communicated clearly.

"Danger" is used to indicate more severe hazards, implying that the chemical presents a high level of risk that can lead to serious injury or health issues, or it might be involved in a situation that requires immediate attention. In contrast, "Warning" indicates a less severe hazard where the risk still exists but is comparatively lower than that associated with the "Danger" label; it serves as an alert to take precautionary measures.

Understanding these signal words is crucial in safety compliance since they help identify the necessary safety measures that workers should follow when handling hazardous materials. Proper identification of hazard severity allows for effective risk management and the implementation of appropriate safety protocols.