Which statement correctly describes Division 4.1 contents?

Which statement correctly describes Division 4.1 contents?

• A. They include flammable solids such as wetted explosives, self-reactive materials, and readily combustible solids
• B. They include only liquids
• C. They include only gases
• D. They include only metals

Answer: (A)

Division 4.1 is about flammable solids—solids that can ignite or burn readily. The statement is the best answer because it reflects the range of materials that belong in this division: wetted explosives, self-reactive materials, and readily combustible solids. These are all solid forms that pose fire hazards, unlike liquids, gases, or metals-only classifications. The other options mischaracterize Division 4.1 by implying it covers liquids, gases, or only metals, which isn’t accurate for this division.

Division 4.1 is about flammable solids—solids that can ignite or burn readily. The statement is the best answer because it reflects the range of materials that belong in this division: wetted explosives, self-reactive materials, and readily combustible solids. These are all solid forms that pose fire hazards, unlike liquids, gases, or metals-only classifications. The other options mischaracterize Division 4.1 by implying it covers liquids, gases, or only metals, which isn’t accurate for this division.