Does the classification of flammable liquids depend on their boiling point?

The classification of flammable liquids indeed does not depend on their boiling point alone. Instead, it primarily relies on the flash point, which is the lowest temperature at which a liquid can vaporize to form an ignitable mixture in air. Flammable liquids are those with a flash point below a certain threshold, typically around 60 degrees Celsius (140 degrees Fahrenheit) according to many safety standards.

While boiling point can influence the behavior of a liquid in terms of vaporization and potential hazards, it is not the defining factor for classifying a liquid as flammable. For example, a liquid can have a high boiling point but still possess a very low flash point, categorizing it as a flammable liquid. Therefore, the classification system focuses specifically on the flash point rather than the boiling point or the conditions of use, making the statement false.