NFPA 25 Chapter 11 is used to inspect devices and equipment associated with foam-water systems, but the chapter will not address low-, medium-, and high-expansion foam systems; which NFPA code covers those foams?

NFPA 25 Chapter 11 is used to inspect devices and equipment associated with foam-water systems, but the chapter will not address low-, medium-, and high-expansion foam systems; which NFPA code covers those foams?

• A. NFPA 70
• B. NFPA 11
• C. NFPA 101
• D. NFPA 25

Answer: (B)

Foam expansion systems have their own design and installation rules, separate from general maintenance standards. NFPA 11 specifically covers foam systems—the foam concentrates, proportioning equipment, and the methods for low-, medium-, and high-expansion foam applications. That focused scope is why it’s the code that governs those foams. The other standards address different areas: NFPA 70 is the electrical code, NFPA 101 deals with life-safety and occupancy requirements, and NFPA 25 covers inspection, testing, and maintenance of water-based systems but not the design specifics for foam expansion types.

Foam expansion systems have their own design and installation rules, separate from general maintenance standards. NFPA 11 specifically covers foam systems—the foam concentrates, proportioning equipment, and the methods for low-, medium-, and high-expansion foam applications. That focused scope is why it’s the code that governs those foams. The other standards address different areas: NFPA 70 is the electrical code, NFPA 101 deals with life-safety and occupancy requirements, and NFPA 25 covers inspection, testing, and maintenance of water-based systems but not the design specifics for foam expansion types.