This heading covers formulations designed to detonate — releasing energy nearly instantaneously — for applications such as rock blasting or demolition. Propellant powders, by contrast, deflagrate (burn rapidly) to generate propulsive force and are classified in the preceding heading. The distinction is based on the explosive mechanism, not the chemical composition alone.

No. Detonating caps, safety fuses, detonating cords, igniters, and electric detonators are classified in the heading covering initiating and firing devices, not here. This heading is limited to the bulk explosive formulation itself.