Hydrogen gas is 15 times lighter than air, and its
molecular velocity is much higher than that
of air and helium. Hydrogen spreads easier throughout
the test object, penetrates leaks
more readily and ventilates away significantly faster
than any other trace gas. It is also the
most inexpensive trace gas available.
Hydrogen gas has a number
of unique properties, which make it an excellent trace gas for use in
leak detection:
The lightest of all molecules
Higher molecular velocity than all other gases. It is
easy to fill, evacuate and dissipate
Spreads faster in a given volume because of its high
molecular velocity
Finds and passes through a leak faster
Easier to flush out and ventilate away. Hydrogen
molecules do not stick to surfaces as easily as Helium atoms. This
implies less of a problem with background interference from gross
leaks and residual gas in tested objects
Low natural background concentration (0.5 ppm)
Environmentally friendly and a renewable natural
resource
Inexpensive
Non flammable (We recommend a standard industrial
mixture of 5 % hydrogen and 95 % nitrogen)*
Non toxic - non corrosive
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Atlanta Georgia serving the Southeast since 1963.