Which color coding indicates high pressure air?

High-pressure air systems are typically identified by a specific color coding to ensure safety and ease of identification. The correct color code for high-pressure air is dark grey. This coding system is established to help personnel quickly recognize the type of gases involved and the associated hazards in the workplace, which is crucial in engineering and safety practices.

Dark grey specifically designates high-pressure air in various industrial and naval applications, serving as a visual shorthand for operators to identify the system easily and understand the precautions necessary when working with it. Understanding this color coding is essential for ensuring safety protocols are followed correctly and that immediate action can be taken in emergencies or during maintenance operations.