What is an example of a material classified as Hazard Class 6?

Arsenic is classified as Hazard Class 6 because it is recognized as a toxic substance that can pose serious health risks to humans and the environment. Hazard Class 6 specifically covers materials that have the potential to be toxic, infectious, or otherwise harmful. Arsenic, being a well-known poison, fits this classification due to its severe toxic effects when ingested or inhaled, resulting in acute and chronic health issues.

The other options listed do not fall under Hazard Class 6. Nitric acid is classified differently as a corrosive material under Class 8, which governs corrosive substances that can damage living tissue or materials. Lithium ion batteries are classified under Class 9, which covers miscellaneous hazardous materials not covered by the other classes but that still pose a risk during transport. Medical waste, depending on its nature, can also fall into different classifications, often being associated with infectious materials, which would place it under Class 6 but does not exclusively represent the entirety of that category. Thus, arsenic distinctly represents a clear example of a material categorized under Hazard Class 6.