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RECORD NUMBER: 17 OF 23

OLS Field Name OLS Field Data
Main Title Statistical evaluation of the TEM (Transmission Electron Microscopy) clearance procedure : draft report for Task 2-26 /
Author Chesson, Jean. ; Rosenberg, J.
Other Authors
Author Title of a Work
Rosenberg, Joshua.
Powers, Thomas J.
CORP Author Price Associates, Washington, DC.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher U.S. Environmental Protection Agency, Office of Research and Development, Risk Reduction Engineering Laboratory,
Year Published 1989
Report Number EPA/600/2-89/044
Stock Number PB89-224489
Subjects Asbestos--Environmental aspects ; Asbestos fibers--Measurement ; Transmission Electron Microscopy ; School buildings ; Building materials ; Fire prevention
Additional Subjects United States.--Asbestos Hazard Emergency Response Act ; Statistical analysis ; Asbestos ; Binomial density functions ; Performance evaluation ; Error analysis ; Concentration(Composition) ; Flow charts ; Graphs(Charts) ; Air pollution sampling ; Indoor air pollution ; Air pollution detection ; Transmission electron microscopy
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB89-224489 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 45 p. : ill., 28 cm.
Abstract
EPA has evaluated the performance characteristics of the three-step clearance procedure under a variety of conditions with the use of a negative binomial distribution to describe the statistical distribution of asbestos fiber concentrations and the Z-test to perform the inside-outside comparisons. The main results of this evaluation of the proposed Transmission Electron Microscopy clearance procedure are: The false negative error rates are lower when the underlying statistical distribution of airborne asbestos concentrations follows a lognormal distribution. Of the four inside/outside comparison tests, the Poisson test has the lowest false negative error rates, but also has the highest false positive rates. Sampling the minimum volume of air increases the false negative error rate, particularly at airborne asbestos concentrations less than 0.06 f/cu cm. Counting only fibers longer than 0.5 micrometers and with an aspect ratio of 5:1 or greater may increase or decrease decision error rates.
Notes
"July 1989." "Thomas J. Powers, Project Officer." Includes bibliographical references.