Record Display for the EPA National Library Catalog

RECORD NUMBER: 3 OF 6

OLS Field Name OLS Field Data
Main Title Investigation of flow rate calibration procedures associated with the high volume method for determination of suspended particulates /
Author Smith, F. ; Wohlschlegel, P. S. ; Rogers, R. S. C. ; Mulligan, D. J.
Other Authors
Author Title of a Work
Smith, Franklin.
CORP Author Research Triangle Inst., Research Triangle Park, NC. ;North Carolina State Univ. at Raleigh.;Environmental Monitoring and Support Lab., Research Triangle Park, NC.
Publisher Office of Research and Development, U.S. Environmental Protection Agency ; Available from the National Technical Information Service,
Year Published 1978
Report Number EPA 600/4-78-047; EPA-68-02-2277
Stock Number PB-291 386
OCLC Number 05079057
Subjects Hydraulics. ; Particle size determination.
Additional Subjects Chemical analysis ; Sampling ; Error analysis ; Samplers ; Air pollution ; Design criteria ; Performance evaluation ; Calibrating ; Laboratory equipment ; Particles ; Total suspended particulates ; Air pollution detection ; Air quality ; Numerical solution ; Procedures
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=2000ASFN.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EIAD  EPA-600/4-78-047 Region 2 Library/New York,NY 10/18/2002 DISPERSAL
EJBD ARCHIVE EPA 600/4-78-047 Headquarters Library/Washington,DC 03/09/2009
EJBD  EPA 600-4-78-047 Headquarters Library/Washington,DC 08/13/2013
EKAM  EPA 600/4-78-047 Region 4 Library/Atlanta,GA 05/27/1994
EKBD  EPA 600/4-78-047 Research Triangle Park Library/RTP, NC 04/17/2019
ESAD  EPA 600-4-78-047 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-291 386 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation ix, 153 pages : illustrations ; 28 cm.
Abstract
Determination of total suspended particulate (TSP) in the ambient air by the high-volume method requires three independent measurements, mass of particulate collected, sampling flow rate, and sampling time. Several potential sources of error in each of the three above measurements have been identified. Implementation of technically sound, standardized flow rate calibration has long been recognized as one of the most effective means of improving the accuracy and precision of TSP data. Procedures for accomplishing this have not been standardized. The purpose of this project was to investigate potential sources of error in the flow rate calibration used in making TSP measurements using the EPA reference method. The first task was a theoretical study of the flow rate calibration and measurement techniques applicable to the high-volume sampler, and secondly to design and carry out an experimental program to assess the validity of the theoretical study concerning temperature and pressure corrections for calibration and use of the high-volume sampler. The indications from this study are that to comply with EPA's requirement that all ambient air quality data be referenced to standard conditions of 298K (25C) and 760 mm Hg and to increase the comparability of TSP data, the flow rate should be based on the flow rate of a standard volume and reported as mass/std volume, e.g., g/SCM. This procedure would require that ambient temperature and barometric pressure at the time of sample collection be known in order to calculate the flow rate based on standard volume.
Notes
Prepared for Quality Assurance Branch, Environmental Monitoring and Support Laboratory, Environmental Protection Agency, Research Triangle Park, N.C. Contract No. 68-02-2277; task no. 5. Includes bibliographical references (pages 83-84).