Which division corresponds to very insensitive explosives?

Which division corresponds to very insensitive explosives?

• A. Explosives Division 1.1
• B. Explosives Division 1.5
• C. Gas Division 2.3
• D. Flammable Solids Division 4.1

Answer: (B)

Very insensitive explosives are placed in the division that is specifically for materials whose initiation is extremely unlikely and which pose only a tiny chance of a mass detonation. This insensitivity sets them apart from other explosive divisions that deal with higher blast hazards. The other options describe hazards unrelated to this category—one covers materials with a mass explosion hazard, another is toxic gas, and another is flammable solids—so they don’t apply to very insensitive explosives.

Very insensitive explosives are placed in the division that is specifically for materials whose initiation is extremely unlikely and which pose only a tiny chance of a mass detonation. This insensitivity sets them apart from other explosive divisions that deal with higher blast hazards. The other options describe hazards unrelated to this category—one covers materials with a mass explosion hazard, another is toxic gas, and another is flammable solids—so they don’t apply to very insensitive explosives.