Record Display for the EPA National Library Catalog

RECORD NUMBER: 993 OF 1029

OLS Field Name OLS Field Data
Main Title The use of Tedlar bags to contain gaseous benzene samples at source-level concentrations /
Author Knoll, Joseph E.
Other Authors
Author Title of a Work
Penny, Wade H.
Midgett, M. Rodney.
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, NC. Quality Assurance Branch.
Publisher Environmental Monitoring and Support Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1978
Report Number EPA-600/4-78-057
Stock Number PB-291 569
OCLC Number 45666118
Subjects Benzene--Sampling. ; Benzene--Testing. ; Gases--Analysis. ; Air--Pollution--Measurement. ; Gas--Analysis
Additional Subjects Gas analysis ; Benzene ; Containers ; Sampling ; Calibrating ; Chemical analysis ; Air pollution ; Gas chromatography ; Laboratory equipment ; Concentration(Composition) ; Air pollution detection ; Tedlar bags ; EPA method 111
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=910178M8.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJAD  EPA 600/4-78-057 Region 3 Library/Philadelphia, PA 06/20/2003
EJBD ARCHIVE EPA 600-4-78-057 Headquarters Library/Washington,DC 10/31/2012
EJBD  EPA 600-4-78-057 c.1-2 Headquarters Library/Washington,DC 05/23/2013
ELBD RPS EPA 600-4-78-057 repository copy AWBERC Library/Cincinnati,OH 10/17/2014
ESAD  EPA 600-4-78-057 Region 10 Library/Seattle,WA 07/29/2005
NTIS  PB-291 569 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation vi, 38 p. : ill. ; 28 cm.
Abstract
Tedlar bags have been evaluated as containers for gaseous benzene samples for use in EPA Method 111 - Determination of Benzene from Stationary Sources. When such bags were used for storage, benzene samples remained essentially unchanged when held at ambient temperatures for up to 17 days, when cooled to -40C for one hour or when heated to 70C for one hour. At higher temperatures, some concentration changes were observed and above 105C decomposition of the bag seals resulted. At room temperature, there was no evidence of permeation loss and absorptive loss could only be observed upon prolonged contact. Flushing bags three times with nitrogen was sufficient to remove all traces of previous samples. Tedlar bags were also used to prepare gaseous mixtures for calibration purposes in gas chromatography. Such samples were prepared by injecting measured quantities of liquid benzene into a bag while metering-in nitrogen gas.
Notes
Includes bibliographical references. "September 1978"--Cover. "EPA-600/4-78-057."