| Gas | Ground Color Code | First Color Band | Second Color Band |
| Air | Sky Blue | White | Black |
| Cyclopropane | Canary Yellow | Light Orange | — |
| Carbon Dioxide | Canary Yellow | Light Grey | — |
| Ethylene | Canary Yellow | Dark Yellow | Signal Red |
| Helium | Canary Yellow | Light Brown | — |
| Oxygen | Canary Yellow | White | — |
| Oxygen and Carbon Dioxide Mixture | Canary Yellow | White | Light Grey |
| Oxygen and Helium Mixture | Canary Yellow | White | Light Brown |
| Nitrous Oxide | Canary Yellow | French Blue | Signal Red |
| Nitrogen | Canary Yellow | Black | — |
| Vacuum | Sky Blue | Black | — |
The Piping Engineering World
Piping Articles and Tools by Jitendra Surve.
IS-2379 Color Codes for Medical Gases
