What is classified as any liquid that has a closed-cup flash point at or above 100°F?

The classification of any liquid that has a closed-cup flash point at or above 100°F as a combustible liquid is based on established safety standards and flammability characteristics. Combustible liquids are categorized by their flash points, with a flash point defined as the lowest temperature at which a liquid can form an ignitable mixture in air.

When a liquid has a flash point at or above 100°F, it indicates that the liquid is less volatile compared to flammable liquids, which have flash points below 100°F. This distinction is significant in safety and regulatory contexts because combustible liquids typically do not ignite as easily or as rapidly as those classified as flammable.

In operational environments, recognizing the differences in flash points is crucial for proper storage, handling, and risk assessment. Planning and safety measures can be better implemented based on these classifications to ensure safer handling of various substances used in medical and industrial applications. This understanding helps personnel to mitigate fire hazards associated with different types of liquids.