2. WHAT IS HELIUM?

Most of us have a fairly good idea that helium is generally not harmful but let’s just define a few key points about helium first so we take up any unclarities in advance.

This is what helium looks like:

helium image

  • •Helium is a standard element with a molecular weight of 4 amu (atomic mass units).
    • Helium is available in small concentrations in ambient air. This provides for low helium background “noise” in a leak detector and makes helium a very attractive gas for leak detection applications.
    • Helium is readily available on a worldwide basis.
    • Helium is not toxic.
    • Helium is not flammable.
    • Helium is an inert gas.

To read more about 3 main components in helium measurement click here.