Determination of the Structural Integrity of Filter/Separator Elements by Nondestructive Testing.
Abstract
The objective of the program is to develop a device for the assembly-line evaluation of F/S elements during manufacture. The work thus far demonstrated that structural, localized defects of various built-in densities in fiber glass filter/separator elements can be detected by gas-diffusion techniques with a tracer gas and a single-probe jet. Preliminary tests indicate that a tracer-gas injection probe, properly positioned, will permit a single sensor probe to detect defects over an appreciable area. Helium, methane, and neon were used as tracer gases because their behavior is similar. These gases can be detected with a partial pressure analyzer at m/e's of 4, 15, and 22, respectively; these peaks interfere only minimally with those from the air sweep gas. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1967
- Accession Number
- AD0721041
Entities
People
- William M. Langdon
Organizations
- IIT Research Institute