NASA NTRS · 19790000380
Detecting leaks in vacuum bags
Abstract
Small leaks in vacuum bag can be readily detected by eye, using simple chemical reaction: combination of ammonia and acetic acid vapors to produce cloudy white smoke. Technique has been successfully used to test seam integrity and to identify minute pinholes in vacuum bag used in assembly of ceramic-tile heat shield for Space Shuttle Orbiter.
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Carlstrom, E. E.. 1980-04-01. Detecting leaks in vacuum bags. https://ntrs.nasa.gov/citations/19790000380
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