What action is required for aging foam concentrates to maintain system efficacy?

What action is required for aging foam concentrates to maintain system efficacy?

• A. Store old concentrates in sealed containers.
• B. Ignore aging and reuse.
• C. Use old concentrates after re-checking.
• D. Monitor and dispose old or degraded concentrates.

Answer: (D)

Aging foam concentrates can lose their foam-making and film-forming ability as components break down, separate, or degrade over time. To keep the system effective, you must actively monitor stored concentrates and dispose of any that are old or degraded, following the manufacturer's guidelines and NFPA 16 requirements. This ensures the foam-water mix will perform as designed during an actual sprinkler event. Merely storing older material, re-checking it, or attempting to reuse degraded concentrate does not restore performance and can leave the system ineffective.

Aging foam concentrates can lose their foam-making and film-forming ability as components break down, separate, or degrade over time. To keep the system effective, you must actively monitor stored concentrates and dispose of any that are old or degraded, following the manufacturer's guidelines and NFPA 16 requirements. This ensures the foam-water mix will perform as designed during an actual sprinkler event. Merely storing older material, re-checking it, or attempting to reuse degraded concentrate does not restore performance and can leave the system ineffective.