Dye solution indicates extent of cracking by penetrating crack and showing original crack depth clearly. Solution comprised of methylene blue in denatured ethyl alcohol penetrates cracks completely and evaporates quickly and is suitable technique for usage in environmental or structural tests.
Inspecting cracks in foam insulation
NASA Tech Briefs ; 4 , 1
1979-08-01
Miscellaneous
No indication
English
Inspecting Pipe Radiographically Through Asbestos Insulation
Online Contents | 1994
NTRS | 1989
|NTRS | 1986
|NTRS | 1978
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