What does the symbol of a flame inside a yellow triangle indicate?

• A. Flammable
• B. Biohazard
• C. Toxic
• D. Radioactive

Answer: (A)

Recognizing hazard symbols helps you quickly assess risks in the workplace. A flame inside a yellow triangle signals a flammable material. The flame icon is the clear indicator of fire risk, meaning the substance can ignite easily when exposed to heat, sparks, or flames. The yellow triangle adds a general warning to handle with extra care and to minimize ignition sources. In practice, this means keeping the material away from open flames, heat, and static; storing it in a flammable storage area; ensuring good ventilation; and using appropriate PPE and handling procedures as described in the safety data sheet. This symbol is distinct from the others, which show different hazards: biohazard has a different emblem, toxic uses a skull-and-crossbones, and radioactive uses a trefoil symbol.