Record Display for the EPA National Library Catalog


Main Title Development of improved analytical techniques for determination of asbestos in water samples /
Author Chatfield, Eric J. ; Chatfield, E. J. ; Dillon, M. J. ; Stott, W. R.
Other Authors
Author Title of a Work
Dillon, M. J.
Stott, W. R.
CORP Author Ontario Research Foundation, Mississauga.;Environmental Research Lab., Athens, GA.
Publisher National Technical Information Service,
Year Published 1983
Report Number EPA 600/4-83-042; PB83-261651; EPA-68-03-2717
Stock Number PB83-261651
OCLC Number 794689346
Subjects Water--Pollution ; Asbestos--Analysis
Additional Subjects Water analysis ; Asbestos ; Water pollution ; Chemical analysis ; Concentration(Composition) ; Sampling ; Fibers ; X ray analysis ; Oxidation ; Stability ; Water pollution detection ; Transmission electron microscopy ; Selective area electron diffraction analysis ; Energy dispersive X ray spectroscopy ; Procedures
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ERAD  EPA 600/4-83-042 Region 9 Library/San Francisco,CA 10/29/2012
ESAD  EPA 600-4-83-042 Region 10 Library/Seattle,WA 05/23/2011
NTIS  PB83-261651 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation xiii, 132 p. : ill. ; 28 cm.
Sample preparation techniques were examined for the analysis of asbestos fiber concentrations in water. The carbon-coated Nuclepore technique using a polycarbonate filter proved to be superior to either the 'drop' or the collapsed membrane filter technique. Compared with plasma ashing, ozone-ultraviolet light oxidation of water samples was found to be a simpler and superior technique for removal of organic materials. Experiments revealed that large proportions of the suspended asbestos fibers could become attached to the inside surfaces of sample containers. This effect was caused by trace organic materials of bacterial origin. Ozone oxidation, carried out inside the collection container, released the attached fibers into the water again. If bacteria and their products were excluded initially, and if absolute sterility was maintained thereafter, suspensions of both chrysotile and crocidolite appeared to be stable for long periods of time. Tests of reference suspensions in sealed glass ampoules stored for almost two years produced fiber concentration values statistically compatible with those obtained at the time of sample preparation.
"PB83-261651." "EPA-600/4-83-042." "September 1983." Originally published: Athens, GA : U.S. Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory, 1983. "Project Officer J. MacArthur Long." Includes bibliographical references.