Which classification describes hazardous materials that have properties such as flashpoint below 200°F and other listed hazards?

• A. MSDS
• B. HAZWASTE
• C. AUL/SHML
• D. 113.1 HAZMAT

Answer: (D)

Understanding how hazardous materials are classified helps you quickly identify the level of controls needed. When a material has a flashpoint below 200°F along with other hazards, it’s flagged under a specific HAZMAT classification that signals tighter handling, storage, and transport requirements. This particular classification—113.1 HAZMAT—exists to identify those materials that are not only flammable but also present multiple hazards, so crews know to apply enhanced precautions and use the proper PPE and containment measures.

The other options don’t describe a classification based on flashpoint and multiple hazards. An MSDS (safety data sheet) provides detailed hazard information about a substance, but it’s not a classification code. HAZWASTE refers to hazardous waste, not a classification for materials with low flashpoints. AUL/SHML are lists used to track approved or restricted hazardous materials, not the specific hazard classification tied to flashpoint thresholds.