What is the primary purpose of a label's signal word?

The primary purpose of a label's signal word is to convey the severity of the hazard associated with a chemical. Signal words, such as "Danger" or "Warning," are used to communicate the level of risk that the chemical poses. "Danger" indicates a more severe hazard requiring immediate attention and caution, while "Warning" suggests a less severe hazard. This classification helps individuals quickly assess the potential risk and take appropriate protective measures when handling the chemical, enhancing safety in the workplace.

Understanding the significance of signal words is essential for effective hazard communication, as they serve as a first alert to workers about the dangers they may encounter. The other choices, while relevant to labels and safety information, do not capture the primary function of the signal word. For instance, the type of chemical, the manufacturer's contact information, and the chemical’s properties are important for identification and reference but do not focus on the immediacy of hazard severity provided by the signal word.