What type of placard is used for flammable substances?

The placard that is used for flammable substances is red with a flame symbol. This is a standard color and symbol representation in the hazard communication system, designed to make identification straightforward and recognizable for responders and the public. The red background indicates an immediate fire hazard, while the flame symbol visually reinforces that the material is flammable. This clear and consistent warning helps ensure that individuals handling or coming into contact with these substances are aware of the potential fire risks associated with them. Using a distinct placard aids in quick identification, which is crucial in emergency situations where time is critical.