Which type of statement is NOT included in a chemical label according to OSHA guidelines?

A chemical label according to OSHA guidelines must include specific elements designed to communicate the potential hazards associated with the chemical effectively. These elements include a signal word, which indicates the severity of the hazard (e.g., "Danger" or "Warning"), a hazard statement that describes the nature of the hazard, and precautionary statements that provide guidance on how to minimize risks associated with the use of the chemical.

The inclusion of signal words helps to quickly convey whether a chemical poses a high risk or a moderate one, while hazard statements elaborate on what the specific dangers are, such as whether a substance is flammable or toxic. Precautionary statements serve as vital instructions for safe handling, storage, and exposure reduction, ensuring users are aware of necessary precautions.

In contrast, an instruction statement, while potentially relevant in other contexts, is not a standard requirement on chemical labels per OSHA guidelines. This type of statement does not fit the designated categories of information that OSHA mandates for effective hazard communication, which is why it is not included on chemical labels.