Foam systems for fire protection are inspected per NFPA 11. Which foam types are governed by NFPA 11?

Foam systems for fire protection are inspected per NFPA 11. Which foam types are governed by NFPA 11?

• A. High-expansion Foam only.
• B. Low-expansion Foam only.
• C. Medium-expansion Foam only.
• D. High-expansion Foam, Low-expansion Foam, and Medium-expansion Foam.

Answer: (D)

NFPA 11 covers foam systems in fire protection for all expansion types, not just one. Whether a facility uses high-expansion for large enclosed spaces, low-expansion for conventional foam systems, or medium-expansion for areas needing intermediate foam output, the standard sets the inspection, testing, and maintenance requirements. That broad scope means every foam expansion type used in fixed fire protection systems is governed by NFPA 11.

NFPA 11 covers foam systems in fire protection for all expansion types, not just one. Whether a facility uses high-expansion for large enclosed spaces, low-expansion for conventional foam systems, or medium-expansion for areas needing intermediate foam output, the standard sets the inspection, testing, and maintenance requirements. That broad scope means every foam expansion type used in fixed fire protection systems is governed by NFPA 11.