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Not really. The transport of helium and hydrogen through potential leaking sites is just different enough that they are sensitive to different things and approp
by exmadscientist 3y ago
Not really. The transport of helium and hydrogen through potential leaking sites is just different enough that they are sensitive to different things and appropriate for different uses. So hydrogen is indeed sometimes used for leak checking.
...though the inert gases (helium, argon, various freons) being inert sure does help make them popular.