Class 2 hazardous materials are categorized as what type?

Class 2 hazardous materials are characterized as gases. In the context of hazardous materials classifications, Class 2 specifically pertains to gases that can be compressed, liquefied, or dissolved under pressure. This class includes not only flammable gases but also non-flammable, non-toxic gases, as well as toxic gases. The importance of correctly identifying these materials lies in their behavior under various conditions and the specific safety measures required for their transport and storage.

The other categories represented in the choices refer to different classifications. Flammable solids are categorized as Class 4, oxidizers fall under Class 5, and explosives are classified as Class 1. Understanding the nuances of these categories helps in ensuring proper handling and compliance with safety regulations related to each type of hazardous material.