What is the color code of R-11 refrigerant?

What is the color code of R-11 refrigerant?

• A. Blue
• B. Green
• C. Red
• D. Orange

Answer: (D)

Color coding on refrigerant cylinders is a quick visual cue to identify the refrigerant type and prevent cross-contamination during handling and servicing. For R-11, the established color is orange, so an orange cylinder is a strong indicator that the contents are R-11. This helps technicians select the correct recovery and charging procedures, especially with older refrigerants like R-11. Other colors such as blue, green, or red are used in different coding schemes or for other refrigerants, but in this context orange specifically identifies R-11.

Color coding on refrigerant cylinders is a quick visual cue to identify the refrigerant type and prevent cross-contamination during handling and servicing. For R-11, the established color is orange, so an orange cylinder is a strong indicator that the contents are R-11. This helps technicians select the correct recovery and charging procedures, especially with older refrigerants like R-11. Other colors such as blue, green, or red are used in different coding schemes or for other refrigerants, but in this context orange specifically identifies R-11.