Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Analytical Standards for the Analysis of Chrysotile Asbestos in Ambient Environments.
Author Small, J. A. ; Steel, E. B. ; Sheridan, P. J. ;
CORP Author National Bureau of Standards (NML), Gaithersburg, MD. Gas and Particulate Science Div.;Environmental Protection Agency, Research Triangle Park, NC.
Year Published 1985
Stock Number PB86-193257
Additional Subjects Asbestos ; Standards ; Chemical analysis ; Reprints ; Transmission electron microscopy ; Chrysotile
Library Call Number Additional Info Location Last
NTIS  PB86-193257 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 5p
Results of a program for the development of standard materials for the analysis of chrysotile asbestos in non-workplace environments are presented. These standards consist of carbon-coated Nucleport filter sections which contain predictable loadings of chrysotile asbestos fibers mixed with an urban air particulate matrix so that they resemble field samples. One standard contains an ambient loading, approximately 9 asbestos fibers/0.01 square millimeter of filter. Because of the low fiber counts and large standard deviation in the average fiber loading, the standard does not have a certified value for the fiber loading. Instead the results are presented in an analysis report. The second standard contains a slightly higher loading of asbestos, approximately 30 fibers/0.01 square millimeter of filter. The standard includes a certified fiber loading with the uncertainty in the value expressed as a 95/95 tolerance interval about a five-count mean.