Record Display for the EPA National Library Catalog


Main Title Two test procedures for radon in drinking water interlaboratory collaborative study /
Author Whittaker, E. L. ; Akridge, J. D. ; Giovino, J.
Other Authors
Author Title of a Work
Akridge, J. D.
Giovino, J.
CORP Author Lockheed Engineering and Management Services Co., Inc., Las Vegas, NV.;Environmental Monitoring Systems Lab., Las Vegas, NV.
Publisher U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory,
Year Published 1987
Report Number EPA/600/2-87/082; EPA-68-03-3249
Stock Number PB88-197306
OCLC Number 22502660
Subjects Radon--Testing ; Drinking water--Testing
Additional Subjects Radon ; Potable water ; Water supplies ; Radioactive contaminants ; Groundwater ; Sampling ; Analytical methods ; Water pollution sampling
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ESAD  EPA 600-2-87-082 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB88-197306 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation ix, 45 p. ; 28 cm.
Two analytical methods for the determination of radon in water concentration were tested in a multilaboratory study with twenty-eight participating laboratories. Eighteen laboratories analyzed prepared samples by the liquid scintillation (LS) method, and twelve laboratories analyzed the same samples by the Lucas Cell (LC) method. A comparison of the grand averages for the three samples with the known values for those samples showed good accuracy for both methods. The accuracy index was not less than 94 percent for any of the three samples when analyzed by either method. Test results for the LS method showed better precision than test results for the LC method. The average repeatability (within-laboratory) precision for the LS method was 3.6 plus or minus 3.0 percent at 95 percent confidence and for the LC method it was 6.4 plus or minus 3.8 percent at 95 percent confidence. The average reproducibility (combined within-and between-laboratory) precision for the LS method was 10.2 plus or minus 4.2 percent at 95 percent confidence and for the LC method it was 17.6 plus or minus 4.2 percent at 95 percent confidence.
"EPA/600/2-87/082." "September 1987." "March 1989"-cover.