A method and apparatus for leak testing a fluid containing chamber wherein the chamber is pressurized with a gas and is submerged in a liquid. The bubbles of gas rising from the submerged chamber are directed past a plurality of a predetermined locations that are each in optical communication with a...http://www.google.es/patents/US5237855?utm_source=gb-gplus-sharePatente US5237855 - Apparatus for leak testing a fluid containing chamber
Apparatus for leak testing a fluid containing chamber