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Title: High efficiency filter systems -- General observations, 1992--1993. Status report

Technical Report ·
DOI:https://doi.org/10.2172/10147090· OSTI ID:10147090
 [1];  [2];  [3]
  1. ed.; Los Alamos National Lab., NM (United States)
  2. Environmental Health Services, Inc., Bellevue, WA (United States)
  3. Los Alamos National Lab., NM (United States)

Reviews of air emission control systems have been conducted at selected facilities supported by the Department of Energy (DOE) Office of Nuclear Energy (NE). Large High efficiency particulate air (HEPA) filtration systems and their testing received particular emphasis. Although significant differences between the sites were found, there were also several common issues. These are discussed under four general topic areas: policy development, testing multiple state systems, guidance on in-place filter testing and system supervision, and uncertainty in in-place filter testing results. Two principal conclusions have emerged from these reviews. First, there is an immediate need to develop information on how filter mechanical integrity decreases with time and use this to establish limits on filter service life. Second, there is a general need to ensure the validity of in-place filter testing results and improve testing practices. A mathematical framework for describing the effects of nonideal system features on testing results is proposed as an aid in understanding the uncertainty in in-place filter testing results.

Research Organization:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-36
OSTI ID:
10147090
Report Number(s):
LA-12763-SR; ON: DE94011021; TRN: AHC29410%%44
Resource Relation:
Other Information: PBD: May 1994
Country of Publication:
United States
Language:
English