7.2.4  Tracer gas methods


Detectors for halogen organic gases are extensively used for both air and cooling water leakage location; Section 7.1 of this chapter gives details of the method.

Generally leakage rates of around 1000 ml/h can be detected with the unit on-load or off-load, as long as a vacuum can be obtained. One operator can carry out a search using a transmitter/detector, although more normally two operators are employed.


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