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The compatibility data shown in our Specialty Gas Compatibility Guide has been compiled to assist in evaluating the appropriate materials to use when handling various specialty gases.

Prepared for use with dry (anhydrous) gases at a normal operating temperature of 70°F (21°C), information may vary if different operating conditions exist.

It is very important that all control equipment be compatible with the gas being distributed. Use of a device that is not compatible with the gas may damage the unit itself or cause a leak that may result in property damage or personal injury. To eliminate potentially hazardous situations, always check for material compatibility before introducing a gas through your gas control equipment.

In addition, equipment used in oxidizer gas service (i.e. oxygen or nitrous oxide) must be cleaned for oxidizer service and is usually specified as such by the manufacturer. Since combinations of gases are unlimited, mixtures (except for ethylene oxide/halocarbon and ethylene oxide/carbon dioxide sterilizing gas mixtures) are not listed in this Compatibility Chart. Before using a gas mixture or any gas not listed in the chart, please contact your Air Liquide representative for more information.

How to use our material compatibility chart

  • Locate the gas you are using in the first column
  • Compare the materials of construction for the equipment you intend to use with the materials of construction shown in the Compatibility Chart
  • Use the Key to Materials Compatibility to determine compatibility