What type of hazardous materials includes substances that can easily ignite and burn?

The emphasis on flammable liquids is due to their properties that allow them to easily ignite and sustain combustion when exposed to an ignition source. These substances have a low flash point, meaning they can produce enough vapor at relatively low temperatures to form an ignitable mixture with air. This characteristic makes them particularly dangerous in various environments, as they can result in rapid fires that can spread quickly if not managed properly.

Understanding flammable liquids is crucial for emergency responders, as they must take immediate actions to mitigate hazards during an incident involving such materials. Proper training on handling, storing, and responding to fires involving flammable liquids is essential for ensuring safety.

Oxidizers, while they can contribute to fires by supporting combustion, do not have the inherent flammability that characterizes flammable liquids. Corrosives involve different hazards related to chemical burns or damage to materials and do not directly pertain to ignition. Explosives represent a different category of hazardous materials that primarily pose a risk of explosion rather than fire, as they undergo rapid chemical reactions that produce gas and heat but are not defined by their flammability in the same way as flammable liquids.