If a material has a flash point at or above 100F, it is classified as what?

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Multiple Choice

If a material has a flash point at or above 100F, it is classified as what?

Explanation:
The central idea is how flash point determines fire safety classifications. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air. Safety standards use a 100°F boundary: liquids with flash points below 100°F are considered flammable, while those at or above 100°F are classified as combustible. So a material with a flash point of 100°F or higher is combustible. This differs from nonflammable (no ignitable vapors under practical conditions) and from explosive (a different category tied to rapid energy release, not just a high flash point).

The central idea is how flash point determines fire safety classifications. The flash point is the lowest temperature at which enough vapor is produced to form an ignitable mixture with air. Safety standards use a 100°F boundary: liquids with flash points below 100°F are considered flammable, while those at or above 100°F are classified as combustible. So a material with a flash point of 100°F or higher is combustible. This differs from nonflammable (no ignitable vapors under practical conditions) and from explosive (a different category tied to rapid energy release, not just a high flash point).

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