Which category of hazardous materials includes substances that can ignite easily?

Flammable liquids fall into a category of hazardous materials characterized by their ability to ignite easily when exposed to an ignition source, such as a spark or flame. These substances have low flash points, meaning they can release enough vapors at normal temperatures to form ignitable mixtures in the air.

In the context of hazardous material management, understanding that flammable liquids are those that can easily ignite is essential for safety procedures and fire prevention strategies. This knowledge helps in identifying risks during emergencies and guides the responses that need to be implemented to mitigate the danger associated with these materials.

Other categories, while hazardous in their own ways, do not specifically denote a high tendency for ignition. Compressed gases may also present hazards, potentially including combustion, but they do not inherently signify the ease of ignition like flammable liquids do. Toxic substances can pose health risks through exposure but do not primarily relate to flammability. Corrosives can damage living tissue and materials upon contact, but their characteristics differ from those of flammable materials.