Record Display for the EPA National Library Catalog


Main Title Development of an automatic H2SO4 monitor /
Author Knight, B. A. ; Brooks, E. F. ; Maddalone., R. F.
Other Authors
Author Title of a Work
Brooks, E. F.
Maddalone, R. F.
CORP Author TRW Defense and Space Systems Group, Redondo Beach, CA.;Industrial Environmental Research Lab., Research Triangle Park, NC.
Publisher U.S. Environmental Protection Agency, Industrial Environmental Research Laboratory ; Available to the public through the National Technical Information Service,
Year Published 1979
Report Number EPA-600/7-79-153; EPA-68-02-2165
Stock Number PB80-138191
OCLC Number 07855643
Subjects Sulfur trioxide ; Condensation ; Condensation ; Sulfur trioxide ; Sulphur trioxide
Additional Subjects Sulfuric acid ; Aerosols ; Monitors ; Design ; Air pollution sampling ; Goksoyr-Ross method
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 600-7-79-153 Headquarters Library/Washington,DC 02/18/2014
EJBD  EPA 600-7-79-153 Headquarters Library/Washington,DC 04/05/2016
EKBD  EPA-600/7-79-153 Research Triangle Park Library/RTP, NC 12/19/2003
ESAD  EPA 600-7-79-153 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB80-138191 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation vi, 68 p. : ill. ; 28 cm.
The report describes the development, construction, and testing of a prototype automatic H2SO4 vapor and aerosol monitor. The device was based on the controlled condensation (Goksoyr/Ross) approach to H2SO4 measurement. In this approach, H2SO4 is condensed out of a filtered gas stream (at 250 C) using a water-jacketed coil maintained at a temperature (62C) below the dewpoint of H2SO4. The H2SO4 collected in the coil is recovered automatically and its electrical conductivity is correlated with H2SO4 concentrations. The monitor is capable of continuous unattended operation for a 24-hour period in streams of moderate (5 g/cu m) particulate loadings. Readings of solution conductivity are recorded continuously, and new samples of the gas stream for analysis are obtained every 10 minutes. H2SO4 concentration can be determined from the instrument and associated calibration curves within 5 minutes of sample acquisition. The prototype can detect H2SO4 concentrations in the range of 0.5 to 500 ppm, at temperatures up to 300C, with 3000 ppm SO2, 8-16% H2O, and up to 9 g/cu m of particulate matter in the gas stream.
"TRW Defense and Space Systems Group." "Industrial Environmental Research Laboratory, Office of Energy, Minerals, and Industry." "July 1979." Includes bibliographical references. "Contract no. 68-02-2165, task no. 105, program element no. INE624."