What is the maximum amount of black powder that can be stored in a sprinklered building?

The maximum amount of black powder that can be stored in a sprinklered building is established by regulations to minimize fire risks while allowing for necessary storage. For black powder, which is a type of explosive material, the National Fire Protection Association (NFPA) guidelines state that in a protected environment, such as a sprinklered building, up to 25 pounds can be safely stored. This limit is set considering both public safety and the potential hazards associated with combustible materials.

Storing more than this amount, such as 50 or 100 pounds, increases the risk of a larger fire or explosion in case of an incident, which the safety regulations aim to prevent. Thus, the correct guideline emphasizes the importance of adhering to specific storage limits to ensure a controlled and safer environment for handling hazardous materials.