Main Title |
Preparation of water samples for asbestos fiber counting by electron microscopy / |
Author |
Chatfield, Eric J., ;
Glass, Roger W. ;
Dillon., M. Jane
|
Other Authors |
|
CORP Author |
Ontario Research Foundation, Sheridan Park.;Environmental Research Lab., Athens, Ga. |
Publisher |
Environmental Research Laboratory, Office of Research and Development, Environmental Protection Agency, Available through the National Technical Information Service. |
Year Published |
1978 |
Report Number |
EPA-600/4-78-011; EPA-68-03-2389 |
Stock Number |
PB-280 183 |
OCLC Number |
03951901 |
Subjects |
Asbestos fibers--Analysis ;
Water--Analysis ;
Electron microscopes
|
Additional Subjects |
Asbestos ;
Fibers ;
Water analysis ;
Chemical analysis ;
Electron microscopy ;
Samples ;
Filtration ;
Ultrasonic frequency ;
Laboratory equipment ;
Water pollution ;
Water pollution detection ;
Procedures
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJED |
EPA 600/4-78/011 |
|
OCSPP Chemical Library/Washington,DC |
03/25/2005 |
ELBD ARCHIVE |
EPA 600-4-78-011 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD |
EPA 600-4-78-011 |
|
AWBERC Library/Cincinnati,OH |
08/21/2019 |
ERAD |
EPA 600/4-78-011 |
|
Region 9 Library/San Francisco,CA |
10/29/2012 |
ESAD |
EPA 600-4-78-011 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-280 183 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
xiv, 118 pages : illustrations ; 28 cm. |
Abstract |
Procedures used by a number of laboratories for the analysis of asbestos fibers in water samples were investigated using standardized aqueous dispersions of chrysotile, crocidolite, and taconite tailings. Filtration problems when using polycarbonate filters were solved, and an optimum filtration technique was developed that permits microscopically uniform deposits to be obtained. Replicate analyses established fiber losses and reproducibility of five filter preparation techniques. The uniformity of the deposits on all the final electron microscope preparations was expressed quantitatively, and the most satisfactory performance was given by all of the Nuclepore techniques. Ultrasonic treatment at 20 kHz increased fiber concentrations of chrysotile suspensions but had no effect on crocidolite suspensions. |
Notes |
Includes bibliographical references (pages 88-89). Prepared by Ontario Research Foundation, under contract no. 68-03-2389. |