| 摘要 |
The invention contemplates observing the gross-leak condition of an article by immersing the same in a liquid inert to the material of the article. A chamber defines a limited volume surrounding the liquid and the article, and the chamber is evacuated while the article is immersed. As pressure reduces to a substantially evacuated condition, the immersed article is observed for the onset of telltale bubbles. The article is then promptly removed from the liquid while still at reduced pressure, thereby allowing the article to begin to dry immediately. The volume is then returned to ambient pressure as drying proceeds. Various specific refinements and embodiments are described.
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