How can you identify if a liquid is flammable or combustible?

Flammability and Combustibility Identification

To identify if a liquid is flammable or combustible, you typically look for its flash point and fire point.

• Flash Point: This is the lowest temperature at which a liquid can give off enough vapor to ignite in the presence of an ignition source. Liquids with lower flash points are generally considered more flammable.
• Fire Point: This is the lowest temperature at which a liquid will continue to burn after being ignited by a flame. The fire point is usually slightly higher than the flash point.

Classification based on Flash Point:

• Flammable liquids typically have flash points below 100°F (37.8°C). These liquids can easily ignite at ambient temperatures.
• Combustible liquids have flash points at or above 100°F (37.8°C) but below 200°F (93.3°C). These liquids require a higher temperature to ignite.

You can find this information on the product's Safety Data Sheet (SDS), typically in Section 9 (Physical and Chemical Properties).

Final Answer: Flammable and combustible liquids are identified by their flash point and fire point, which indicate the temperatures at which they can vaporize and ignite.