Flammable liquids classified as Class 1B have a flash point below 73 degrees F and a boiling point at or above what temperature?

Flammable liquids classified as Class 1B are defined by specific temperature criteria: they have a flash point below 73 degrees Fahrenheit and a boiling point at or above 100 degrees Fahrenheit. The classification system is important for safety considerations because it identifies liquids that pose significant fire hazards.

In this context, the flash point is the lowest temperature at which enough vapor is produced to ignite in air, while the boiling point is the temperature at which the liquid turns to vapor. Class 1B liquids possess a critical characteristic of being volatile enough to emit flammable vapors at relatively low temperatures but have higher boiling points, which helps in identifying the risk levels associated with their use and storage.

Choosing 100 degrees Fahrenheit as the correct response reflects the standard regulatory definitions that require careful management of substances within this category to ensure safety in workplaces or environments where such flammable liquids might be present. This is particularly relevant in regulations and guidelines established by agencies like the Occupational Safety and Health Administration (OSHA) and other safety organizations.