Record Display for the EPA National Library Catalog


Main Title Comparison of VOA compositing procedures
CORP Author Environmental Protection Agency, Washington, DC. Office of Water.
Publisher U.S. Environmental Protection Agency, Office of Water,
Year Published 1995
Report Number EPA 821-R-95-035
Stock Number PB96-112883
OCLC Number 34729849
Subjects Volatile organic compounds--Analysis ; Water--Analysis ; Trace elements in water--Analysis ; Effluent quality--Standards--United States
Additional Subjects Water pollution sampling ; Organic compounds ; Volatility ; Test methods ; Statistical quality control ; Comparative evaluations ; Bias ; Chemical effluents ; Toxic substances ; Hazardous materials ; Waste water ; Quality assurance ; Industrial wastes ; VOA(Volatile organic analysis) ; VOCs(Volatile organic compounds) ; Grab samples ; Composite samples ; Manual sampling ; Automatic sampling
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA/821-R-95-035 Headquarters Library/Washington,DC 11/22/1996
ELBD ARCHIVE EPA 821-R-95-035 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB96-112883 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 29, {11} p. : ill. ; 28 cm.
This report provides results produced by VOA grab and composite sampling procedures in studies conducted by the U.S. Environmental Protection Agency (EPA) in early 1994. In these studies, four individual grab samples of real-world effluents were collected over the course of a day. These were analyzed spiked or unspiked, composited and individually, by isotope dilution GC/MS, using Revision C of EPA Method 1624. Both manual and automated grab sampling procedures were employed. Compositing procedures employed included flask, purge device, and continuous. Analytes spiked were the volatile organic GC/MS fraction of the priority pollutants plus additional compounds routinely tested for in EPA's industrial surveys. The ojective of these studies was to compare the analytical results for manually collected individual grab samples to the analytical results for composited samples and automatically collected grab samples, to determine if bias occurred in the automated grab and compositing processes.
"September 1995." "EPA 821-R-95-035"--Cover. Includes bibliographical references.