Division 5.1 refers to which type of material?

Division 5.1 refers to which type of material?

• A. Oxidizer / a material that may, generally by yielding oxygen, cause or enhance the combustion of other materials.
• B. Organic peroxide / any organic compound containing oxygen in the bivalent structure.
• C. Inert solid.
• D. Toxic gas.

Answer: (A)

Division 5.1 covers oxidizing substances. These materials may not burn on their own, but they release oxygen or otherwise enable or accelerate the combustion of other fuels. That oxygen-yielding tendency is what makes them capable of causing or enhancing fires, so they’re classified as oxidizers. Organic peroxides belong to a different category, Division 5.2, and have hazards related to self-decomposition and potential explosions rather than just supplying oxygen. An inert solid isn’t an oxidizer at all, and toxic gases fall under other hazard classes (gases) with different risks.

Division 5.1 covers oxidizing substances. These materials may not burn on their own, but they release oxygen or otherwise enable or accelerate the combustion of other fuels. That oxygen-yielding tendency is what makes them capable of causing or enhancing fires, so they’re classified as oxidizers.

Organic peroxides belong to a different category, Division 5.2, and have hazards related to self-decomposition and potential explosions rather than just supplying oxygen. An inert solid isn’t an oxidizer at all, and toxic gases fall under other hazard classes (gases) with different risks.