Helium leak testing can be performed by either:

1. Evacuation (Tracer Probe)
2. Pressurization (Detector Probe)

You NEED Helium Leak Testing When:

1. Conventional methods do not work
2. There are recurring leaks on repaired systems
3. The item needs to remain moisture free while out of service

Why Helium?

• It is the lightest of the noble gases with a mass of 4 (only hydrogen is lighter)
• It is non-toxic and non-reactive
• Trace concentrations (5 ppm) present in atmosphere
• Readily available and relatively inexpensive

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