Fundamentals of Leak Detection 

A great presentation. Thanks. There is a related leak-detection method to the visual methods mentioned, where a solvent like acetone can be applied in small amounts to vacuum seals or joints. The solvent ingress will cause a spike in the internal pressure, which you can read using standard vacuum gauges. I don't advise using this on rubber o-ring seals as the solvent might damage the seal, and you have to be careful not to get the solvent on nearby cables or hoses! However, on con-flat (with a soft-metal seal) this is a very easy (and cheap!) way to find a leak. Excessive use of this technique can cause your Inverted Mag "Penning" gauges to need cleaning... :)

Excellent presentation

Please. Enable the option to view subtitles. Thanks,

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