What type of substance does UN2814 represent?

UN2814 represents a Category A Infectious Substance, which is characterized by its potential to cause severe illness or disease in humans or animals. These substances are categorized based on their ability to pose a significant risk, often requiring stringent handling and transportation measures to prevent exposure and ensure safety.

Specifically, Category A Infectious Substances are defined as those that are capable of causing permanent disability, life-threatening or fatal disease in otherwise healthy humans or animals when exposure occurs. The classification reflects the critical nature of such substances and the necessity for rigorous compliance with Transportation of Dangerous Goods regulations to mitigate any potential hazards associated with their transport.

In contrast, the other options refer to different substances with entirely distinct classifications and implications for safety procedures, emphasizing the unique risks associated with Category A Infectious Substances and the importance of proper identification for safe transport.