Storing Methyl Methacrylate (MMA) requires a delicate engineering balance. Because it is both a Class IB Flammable Liquid and a Class 2 Unstable Reactive, the storage design must simultaneously mitigate the vapor-fire hazard while actively feeding the chemical inhibitor to prevent thermal runaway. When evaluating bulk storage tanks from a Process Safety Management (PSM) perspective, the facility design and standard operating procedures must revolve around these core pillars: