AIChE Chemical Engineering Jeopardy Practice Exam

FP denotes flash point, the lowest temperature at which a flammable liquid will release enough vapor to form an ignitable mixture with air in the presence of an ignition source. This property is crucial for assessing flammability risk and guiding safe handling, storage, and labeling. It’s different from autoignition temperature, which is the temperature at which the vapor-air mixture will ignite without any external ignition source. The other terms refer to a safety organization or a risk-analysis method, not a liquid property.