What should aerial shells, mines, and comets be classified by?

Aerial shells, mines, and comets are classified by the inside diameter of the mortar. This classification is vital because it helps ensure that the shell is compatible with the mortar being used for the fireworks display. The inside diameter dictates the size and type of the aerial shell, as well as the safe distances that must be maintained for a successful display.

Using the correct mortar size is imperative for the proper functioning and performance of the fireworks, as it allows for the appropriate launch and the expected aerial effects. It also affects safety regulations and procedures during setup and execution of a fireworks display, which is deeply emphasized within the NFPA 1123 guidelines. Proper classification by inside diameter helps firework operators adhere to safety standards and achieve predictable outcomes during the display.