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Title: In-place filter testing summary

Abstract

The most common method of identifying particle penetration through a filter or adsorber system is through the performance of a periodic penetration test, i.e., in-place test or leak test using an aerosol or gas vapor to challenge the filter or adsorber system. The aerosol is usually formed by vaporization of a liquid, di-2(ethelhexyl sebacate) (DEHS), and allowed to condense to form liquid particles of a certain size and distribution. The gas vapor is formed by vaporization of Freon 11 liquid. The periodic penetration test, although conducted annually, can and has been demonstrated to show the beginning degradation of a filter or adsorber system. Other evidence of penetration can include detection of radiation downstream of the filter system or the existence of an unusually low pressure drop across the filter, i.e., torn filter, etc. However, these kinds of occurrences show up instantaneously and could release radioactive material to the atmosphere before the systems could be shut down. When a filter system fails the in--place test or is showing evidence of.filter or component degradation, corrective measures are put into place in order to return,the system back to its best operating condition. This report presents a summary of all filter tests.

Authors:
; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
10181936
Report Number(s):
LA-UR-88-2694
ON: DE93040386
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Mar 1988
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FILTERS; TESTING; PARTICLE SIZE; AEROSOLS; SPECIFICATIONS; AIR FILTERS; LANL; 054000; 320107; HEALTH AND SAFETY; BUILDING SYSTEMS

Citation Formats

Ortiz, J P, Garcia, E D, and Ortega, J M. In-place filter testing summary. United States: N. p., 1988. Web. doi:10.2172/10181936.
Ortiz, J P, Garcia, E D, & Ortega, J M. In-place filter testing summary. United States. https://doi.org/10.2172/10181936
Ortiz, J P, Garcia, E D, and Ortega, J M. 1988. "In-place filter testing summary". United States. https://doi.org/10.2172/10181936. https://www.osti.gov/servlets/purl/10181936.
@article{osti_10181936,
title = {In-place filter testing summary},
author = {Ortiz, J P and Garcia, E D and Ortega, J M},
abstractNote = {The most common method of identifying particle penetration through a filter or adsorber system is through the performance of a periodic penetration test, i.e., in-place test or leak test using an aerosol or gas vapor to challenge the filter or adsorber system. The aerosol is usually formed by vaporization of a liquid, di-2(ethelhexyl sebacate) (DEHS), and allowed to condense to form liquid particles of a certain size and distribution. The gas vapor is formed by vaporization of Freon 11 liquid. The periodic penetration test, although conducted annually, can and has been demonstrated to show the beginning degradation of a filter or adsorber system. Other evidence of penetration can include detection of radiation downstream of the filter system or the existence of an unusually low pressure drop across the filter, i.e., torn filter, etc. However, these kinds of occurrences show up instantaneously and could release radioactive material to the atmosphere before the systems could be shut down. When a filter system fails the in--place test or is showing evidence of.filter or component degradation, corrective measures are put into place in order to return,the system back to its best operating condition. This report presents a summary of all filter tests.},
doi = {10.2172/10181936},
url = {https://www.osti.gov/biblio/10181936}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Mar 01 00:00:00 EST 1988},
month = {Tue Mar 01 00:00:00 EST 1988}
}