What is a characteristic of Class 6 materials?

Class 6 materials are defined by their potential to pose biological hazards, specifically toxic and infectious substances. These materials are categorized primarily by their risk to human health and the environment, which includes items such as pathogens and other hazardous biological agents. This classification is crucial for safely handling and transporting these materials, as they require specific protocols to prevent exposure and contamination.

The other characteristics listed do not accurately represent Class 6 materials. For example, while gases at ordinary temperatures do exist, they are not exclusive to this class and are typically categorized under different classifications. Similarly, while spontaneous combustion is a quality more aligned with Class 4 materials, it isn’t a characteristic of Class 6. Thus, Class 6 is uniquely identified by its inclusion of toxic and infectious substances, highlighting the importance of managing biological risks effectively.