For a projectile with bursting smoke categorized as pttf, which safety elements apply?

• A. He, frag, move, eject (filler), 1hrwt
• B. He, frag, move, fire, wp, 1hrwt
• C. He, frag, move, eject (filler), c/s, emr, static, 1hrwt
• D. He, frag, move, eject (filler), c/s

Answer: (B)

When evaluating a projectile that bursts to release smoke and is classified as pttf, you must identify all hazards created by the bursting charge and the filler, and apply the safety elements that address those hazards.

The combination needed includes a high-explosive hazard (the energetic burster), a fragmentation hazard (shrapnel from the casing), and the movement precaution to keep personnel out of the danger zone. Because the filler is white phosphorus, you must include the WP hazard to account for its incendiary and toxic properties, and you must plan for a fire hazard since WP can ignite and burn. The one-hour wait-time element is included to allow any WP-related effects to stabilize or dissipate before approaching or handling the item.

Other options miss one or more of these essential hazards (for example, omitting fire and WP, or adding elements not relevant to a bursting smoke with WP filler). Therefore, the best match is the set that includes high-explosive, fragmentation, movement, fire, WP, and the one-hour wait-time.