Which section in the Safety Data Sheet would contain fire-fighting measures?

The section of the Safety Data Sheet that provides information about fire-fighting measures is indeed Section 5. This section focuses specifically on the measures that should be taken in case of a fire involving the chemical substance. It includes essential details such as suitable extinguishing media, specific hazards arising from the chemical, and any special protective equipment that firefighters should use. By having this information clearly outlined, personnel can better prepare for and respond to fire emergencies, ensuring both safety and effective management of fire incidents involving hazardous substances.

Section 4 typically pertains to first-aid measures, while Section 6 discusses accidental release measures. Section 7 focuses on handling and storage guidelines. As such, these sections are not directly concerned with fire-fighting strategies, making Section 5 the correct choice for locating fire-fighting measures.