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Title: New method for in-place testing of tandem HEPA filter installations

Abstract

A new in-place high-efficiency particulate air (HEPA) filter testing procedure has been developed, based on the use of an intracavity laser particle spectrometer for ultrasensitive detection of challenge particulate concentrations downstream of tandem HEPA filter installations. The feasibility of these measurements had initially been demonstrated on a small-scale laboratory system where overall protection factors of 10/sup 0/ were routinely measured. The primary scaling problem for systems up to 200,000 CFM was in producing sufficient challenge aerosol. This was accomplished by the design and construction of a high-volume thermal dioctyl phthalate generator. The results of acceptance testing of 13 tandem HEPA filter systems, performed with both the spectrometer technique and conventional light-scattering photometry, are displayed and problem areas discussed.

Authors:
;
Publication Date:
Research Org.:
Los Alamos Scientific Lab., NM
OSTI Identifier:
5595119
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Journal Article
Journal Name:
Am. Ind. Hyg. Assoc. J.; (United States)
Additional Journal Information:
Journal Volume: 40:11
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AIR CLEANING; EFFICIENCY; AIR FILTERS; FEASIBILITY STUDIES; COMPARATIVE EVALUATIONS; DESIGN; EXPERIMENTAL DATA; ISOLATED VALUES; LASERS; PARTICLES; PHOTOMETERS; QUANTITY RATIO; SPECTROMETERS; TESTING; CLEANING; DATA; DATA FORMS; EQUIPMENT; FILTERS; INFORMATION; MEASURING INSTRUMENTS; NUMERICAL DATA; POLLUTION CONTROL EQUIPMENT; 500200* - Environment, Atmospheric- Chemicals Monitoring & Transport- (-1989)

Citation Formats

Schuster, B G, and Osetek, D J. New method for in-place testing of tandem HEPA filter installations. United States: N. p., 1979. Web. doi:10.1080/15298667991430587.
Schuster, B G, & Osetek, D J. New method for in-place testing of tandem HEPA filter installations. United States. https://doi.org/10.1080/15298667991430587
Schuster, B G, and Osetek, D J. 1979. "New method for in-place testing of tandem HEPA filter installations". United States. https://doi.org/10.1080/15298667991430587.
@article{osti_5595119,
title = {New method for in-place testing of tandem HEPA filter installations},
author = {Schuster, B G and Osetek, D J},
abstractNote = {A new in-place high-efficiency particulate air (HEPA) filter testing procedure has been developed, based on the use of an intracavity laser particle spectrometer for ultrasensitive detection of challenge particulate concentrations downstream of tandem HEPA filter installations. The feasibility of these measurements had initially been demonstrated on a small-scale laboratory system where overall protection factors of 10/sup 0/ were routinely measured. The primary scaling problem for systems up to 200,000 CFM was in producing sufficient challenge aerosol. This was accomplished by the design and construction of a high-volume thermal dioctyl phthalate generator. The results of acceptance testing of 13 tandem HEPA filter systems, performed with both the spectrometer technique and conventional light-scattering photometry, are displayed and problem areas discussed.},
doi = {10.1080/15298667991430587},
url = {https://www.osti.gov/biblio/5595119}, journal = {Am. Ind. Hyg. Assoc. J.; (United States)},
number = ,
volume = 40:11,
place = {United States},
year = {1979},
month = {11}
}