In terms of classification, ammonia is categorized under which classification code?

Ammonia is classified as B2 in terms of classification codes for refrigerants. The B2 classification refers specifically to substances that are classified as toxic and have properties leading to serious health risks. Ammonia, being a natural refrigerant, has beneficial thermodynamic properties, but it can be hazardous to human health if inhaled in high concentrations, leading to severe respiratory issues or other toxic effects.

This classification helps ensure that those who handle ammonia are properly trained in safety protocols and understand the risks associated with its use. It also governs regulations surrounding the storage, handling, and application of ammonia in refrigeration systems, emphasizing safety due to its toxic nature. This classification is crucial for maintaining safety standards in workplaces where ammonia is used as a refrigerant.