Background AeroChemicals stored solvents used in coating operations: acetone, methyl ethyl ketone, and a heavier mineral‑spirits blend. Some were transferred between drums in the shop; others were kept in a climate‑controlled storage room. Over time, shortcuts crept in: caps left loose, rags piled near a drum, and a spare drum stored in a corridor during a busy production week.
NFPA 30 interacts heavily with NFPA 13 (Sprinkler Systems).
NFPA 30 categorizes liquids based on their and boiling point to determine the level of fire hazard: Class I (Flammable): Flash point < 100°F (37.8°C). Class IA: Flash point < 73°F; Boiling point < 100°F. Class IB: Flash point < 73°F; Boiling point ≥ 100°F. Class IC: Flash point ≥ 73°F but < 100°F.
The 2024 edition explicitly requires documented explosion hazard evaluations for Class IA liquids stored in containers larger than 1 gallon.