Linde uses an variety of colored cylinders to help distinguish the different gases within each. Below is a color chart that shows the different cylinder colors for:
Acetylene
Industrial Air
Breathing Air
Argon
Carbon Dioxide
FG-2
Helium HeliStar Blend
Hydrogen HydroStar Blend
LaserStar Gases and Blends
Nitrogen
Oxygen
Propane
Propylene
StarFlame C Cutting Fuel
StarGold Stargon
Please note that this is a representation only of the colors used for a majority of the cylinders we distribute. The cylinder label is always the proper way to determine what is in a cylinder.