What does AMDQ stand for?

• A. Adjusted Maximum Design Quantity
• B. Adjusted Minimum Design Quantity
• C. Average Minimum Design Quantity
• D. Actual Maximum Design Quantity

Answer: (B)

AMDQ stands for Adjusted Maximum Design Quantity. In clean agent system design, the Maximum Design Quantity is the amount of agent required to reach the target design concentration in the protected space under ideal conditions. The “Adjusted” qualifier accounts for real‑world factors that can affect performance—such as room layout, leakage paths, compartmentalization, and release effectiveness—so the quantity used is revised to reflect what can actually be delivered and distributed. This keeps the system design practical and compliant with performance criteria without oversizing. The other phrasings don’t fit NFPA 2001 terminology, since the established term uses Maximum—not Minimum—and does not refer to an “Actual” Maximum.