What color represents oxygen on a gas cylinder?

The color that represents oxygen on a gas cylinder is green. This color coding is a standard used in many countries to help identify the contents of gas cylinders quickly and safely. The use of specific colors for different gases is crucial in laboratory, medical, and industrial settings to prevent the dangerous consequences that could arise from mixing gases or using them incorrectly.

The green color for oxygen ensures that personnel can recognize the cylinder containing oxygen at a glance, promoting safety and efficiency in environments where gases are utilized. This established color code is part of a broader effort to standardize gas cylinder labeling and enhance safety protocols in handling potentially hazardous materials.