What refrigerant is indicated by a white colored cylinder?

The white colored cylinder is an indication of R-12 refrigerant. Historically, refrigerants are often color-coded for easy identification, which helps both technicians and safety professionals recognize the type of refrigerant contained within a cylinder.

R-12, also known as dichlorodifluoromethane, was commonly used in refrigeration and air conditioning applications before being phased out due to its ozone-depleting properties. The white color for R-12 cylinders has been a long-standing convention, making it easily recognizable.

While other refrigerants such as R-22, R-134a, and R-410A may have their own specific identifiers and color coding standards, they are not associated with white cylinders. R-22 is often associated with green or light blue, R-134a typically uses a light blue cylinder, and R-410A is usually identified by a light green or turquoise color. Recognizing these color codes can help prevent the incorrect handling or mixing of refrigerants in refrigeration systems.