Are all flammable liquids classified as Class I liquids?

The classification of flammable liquids is based on their flash points—the lowest temperature at which enough vapor is produced to ignite in air. Class I liquids are those with flash points below 100 degrees Fahrenheit (37.8 degrees Celsius), which includes some of the most commonly encountered flammable materials. However, not all flammable liquids fall into this category. There are flammable liquids with higher flash points that are classified under different categories based on their properties.

Thus, stating that all flammable liquids are classified as Class I liquids is incorrect. Many flammable liquids have flash points that exceed this threshold and would not be designated as Class I. This understanding is crucial for safety practices, as it impacts how different liquids should be handled, stored, and transported in the workplace to minimize risks associated with fire hazards.