Accession Number : AD0721041

Title :   Determination of the Structural Integrity of Filter/Separator Elements by Nondestructive Testing.

Descriptive Note : Final technical rept. 17 May-16 Aug 67 on Phase 1,

Corporate Author : IIT RESEARCH INST CHICAGO ILL

Personal Author(s) : Langdon,William M.

Report Date : SEP 1967

Pagination or Media Count : 36

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)

Descriptors :   (*FUEL FILTERS, NONDESTRUCTIVE TESTING), DEFECTS(MATERIALS), GAS FLOW, DETECTORS

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Pumps, Filters, Pipes, Tubing, Fittings & Vlvs

Distribution Statement : APPROVED FOR PUBLIC RELEASE