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.
Detecting leaks in vacuum bags
NASA Tech Briefs ; 4 , 3
1980-04-01
Miscellaneous
No indication
English
NTRS | 1984
|Emerald Group Publishing | 2001
Foil Patches Seal Small Vacuum Leaks
Online Contents | 1995
NTRS | 1983
|Technology update - Detecting leaks at airports
Online Contents | 2001