What does Class 2 in the hazard classification system include?

Class 2 in the hazard classification system refers specifically to gases. This classification includes substances that are in gaseous form at normal temperature and pressure and may be categorized into three major types: flammable gases, non-flammable gases, and toxic gases.

Gases can pose significant hazards due to their ability to disperse quickly in the environment, which can lead to wide-ranging effects if released. Understanding the properties and risks associated with gaseous materials is essential for emergency response personnel, as these substances often require specialized handling and containment measures, especially in cases of leaks or spills.

The other categories mentioned—liquids, plastics, and solids—fall into different classes of hazardous materials. Liquids, for example, may belong to Class 3 (flammable liquids), while solids are classified in Class 4 or other relevant categories based on their characteristics. Therefore, recognizing that gases are a distinct category within the hazard classification system is crucial for effective safety measures and response strategies in case of hazardous material incidents.