Which NFPA document provides guidelines for the safety of water mist fire protection systems?

NFPA 750 is the document that specifically addresses guidelines for the design and installation of water mist fire protection systems. It outlines the requirements for various types of water mist systems, including those used for protecting property and life safety, and ensures that these systems perform effectively in different fire scenarios. The standard provides comprehensive instructions on system components, design methodologies, testing, and maintenance, ensuring that water mist systems can be safely and effectively deployed to suppress fires.

In contrast, the other options pertain to different fire protection and safety standards: NFPA 700 focuses on the standards for life safety, NFPA 800 addresses safety requirements for the design and installation of emergency management systems, and NFPA 600 deals with the safety of emergency vehicles. Therefore, none of these documents provide the specialized guidelines necessary for water mist systems that NFPA 750 does.