As designed, NFPA standard for low, medium, and high expansion foam is which number?

The NFPA standard that addresses low, medium, and high expansion foam is NFPA 11. This standard provides guidelines for the selection and use of foam fire extinguishing agents, defining the criteria for their performance, properties, and applications. It includes detailed information on foam characteristics and specifies the required methods for testing foam systems, ensuring that they function effectively in various fire situations.

NFPA 10 pertains to portable fire extinguishers, while NFPA 12 covers carbon dioxide extinguishing systems. NFPA 13 focuses on the installation of sprinkler systems. Therefore, these standards do not address foam agents specifically, making NFPA 11 the correct standard for understanding the classifications and applications of foam fire suppression systems.