Certified Hyperbaric Technologist Practice Test

What color represents a nitrogen cylinder in compliance with CGA guidelines?

1. Gray

2. Green

3. Black

4. Red

The correct answer is: Black

In compliance with CGA (Compressed Gas Association) guidelines, nitrogen cylinders are designated with a color code to ensure safe identification and handling. The color representing nitrogen is black. This coding system is essential for preventing accidents and ensuring that medical and industrial gases are easily distinguishable. Gray is not associated with nitrogen; instead, it often identifies carbon dioxide. Green usually denotes oxygen, while red is typically reserved for acetylene. Thus, the color coding for gases plays a critical role in safety practices, making it imperative that professionals working with these gases recognize these standards accurately. Understanding these color codes is crucial for any certified hyperbaric technologist or any personnel dealing with gas cylinders, as it ensures the right gas is used for the intended application, thereby maintaining safety and compliance in various environments.