What is the maximum number of mortars allowed in a rack for those that are 3 inches or less in diameter?

In NFPA 1123, the guidelines specify the maximum number of mortars permitted in a rack based on the diameter of the mortars. For mortars that are 3 inches or less, the code allows for a maximum of 15 mortars in a single rack. This regulation is in place to ensure safety during fireworks displays, as limiting the number of mortars helps to mitigate risks associated with potential malfunctions or accidents, such as fires or explosions.

The number 15 is established as a standard to balance operational capacity with safety considerations, taking into account the size of the mortars and the potential for crowd proximity during a display. This understanding is crucial for those involved in planning and executing fireworks shows, as adherence to these specifications is necessary for compliance with safety standards and for the overall success of the event.