What type of materials are classified under UN Hazard Class 2?

The classification of materials under UN Hazard Class 2 is specifically designated for gases. This category includes both flammable gases and non-flammable but toxic gases. The distinction is crucial as these substances can present unique hazards, requiring specialized handling procedures and safety measures during transportation and emergency response.

Understanding this classification is important for emergency services personnel because gases can behave differently from solids and liquids in terms of dispersion, ignition, and health risks. For example, flammable gases can ignite easily and spread rapidly, while toxic gases may pose immediate health risks upon inhalation. Proper identification of hazardous materials allows for appropriate response strategies and ensures the safety of both emergency responders and the public.

Liquid flammables, oxidizers, and radioactive materials fall under different UN hazard classes due to their distinct properties and risks, highlighting the importance of recognizing the specific categories for effective hazard management.