What color indicates a high-pressure oxygen system bottle?

The color that indicates a high-pressure oxygen system bottle is green. This standard color-coding helps personnel quickly identify different types of gas systems. In aviation, green specifically denotes that the bottle contains high-pressure oxygen, which is crucial for maintaining the safety of passengers and crew in high-altitude operations where oxygen levels in the atmosphere are insufficient for breathing.

The use of color coding in oxygen systems is important for safety and effective maintenance. Personnel can easily recognize a green bottle as an indication of high-pressure oxygen, allowing them to handle it correctly and ensure proper procedures are followed. Each color corresponds to a specific gas or function, making it easier to ensure that the correct systems are being used in emergency situations or during routine checks.

Other colors have different meanings—red often signals fire extinguishers or hazardous materials, yellow might indicate a specific type of compressed gas or equipment, and blue typically corresponds to nitrogen systems or inert gases. Understanding this color coding is vital for anyone working in aviation to avoid confusion during operations or emergencies.