Air Liquide, in conjunction with Spectra Sensors and COSA, has designed a proprietary technology for the certification of moisture standards. Green cylinders, as they are known in the industry, are available as Scott™ brand mixtures and in balances of methane or nitrogen, as well as helium and others. The values are interlocked using independent measurements from the gravimetric addition and the analytical results, and must agree within ±5%.

Product Specifications

Water or Moisture Gas Mixtures
Helium in Nitrogen Gas Mixtures

Related Supply Modes

Air Liquide packages carbonyl sulfide gas mixtures in a variety of high-pressure aluminum gas cylinders.

High-Pressure Cylinders

Related Equipment

Air Liquide offers a variety of gas handling equipment designed to deliver moisture standards safely to your point of use, including heated gas pressure regulators.