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  • Leak Testing (.pdf)
    Practically every pressure-containing vessel is leak tested during production or assembly. There are generally three types of leak test methods: pressure or vacuum decay, flow tests and helium tests. For a pressure decay test: a volume is pressurized, then the pressure supply is closed
  • Medical Device Link .
    of the test equipment available. The limited dynamic range of conventional helium leak detectors required that a secondary test procedure be developed to cover the large, or gross, leak range. Several methods have been tried, and the most commonly used procedure, referred to as the bubble test, involves
  • Medical Device Link .
    the location of thin channel leaks. It features retrievable validation data and a graphic display. 143 California St., Newton, MA 02458. Featuring an oil-free diaphragm and molecular drag pump, a portable helium leak detector works in cleanrooms, pharmaceutical manufacturing facilities, and other

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