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Hydrogen is more difficult than heavier gases to pump because of its high thermal velocity. Positive displacement systems, momentum transfer systems, entrapment system are some requirements for safe pumping of hydrogen gas.
A Parker Hydrogen Generator is an excellent source of ultra-pure, dry hydrogen for a wide range of laboratory uses. These generators are used extensively with gas chromatographs to provide a fuel gas for Flame Ionization Detectors (FID), a reaction gas for hall detectors, and a carrier gas to ensure absolute repeatability of retention times.