Colour specifications for gas cylinders
Posted by Vincent Larsson on
The cylinder label remains the main method for identifying the gas inside, while the color coding of the cylinder body offers additional guidance. The color on the cylinder's shoulder, the curved top section, indicates the European standard color coding.
The new standard, EN 1089-3, which has replaced the previous BS349 color scheme, aims to enhance safety standards in the gas industry. While shoulder colors indicate gas properties, many common pure gases have specific, distinct colors.
Pure Gases
- Acetylene:Ā Maroon
- Oxygen: White
- Argon: Dark Green
- Hydrogen: Red
- Nitrogen: Black
- Carbon Dioxide: Grey
- Helium: Brown
- Nitrous Oxide: Blue
Gas Mixtures
- Inert Gases: Light green
- Flammable Gases: Red
- Oxidizing Gases: Light Blue
- Toxic and/or Corrosive Gases: Yellow
