Helium Leak Testing Machine

Helium is one of the smallest gas molecules and is inert, (remember your periodic table from Chemistry?). Being inert it is relatively safe to use (rather than hydrogen) and will not react with any of the materials within the part to be tested. In most helium leak testing applications, one uses a mass spectrometertuned to detect helium although it is possible to use a residual gas analyser. Helium leak testing can be generally be between one thousand and one million times more sensitive than using pressure decaytechniques.