Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Humidity measurement comparison tests dew point hygrometer vs. wet bulb psychrometer /
Author Funk, Sherman D.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Engineering Operation Div.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise And Radiaiton, Office of Mobile Sources, Engineering Operations Division, Engineering Staff,
Year Published 1983
Report Number EPA-AA-EOD/ES-83/1
Stock Number PB83-237487
OCLC Number 702372930
Subjects Air--Pollution--United States. ; Automobiles--Motors--Exhaust gas--United States. ; Humidity. ; Hygrometers. ; Hygrometry. ; Atmospheric temperature.
Additional Subjects Exhaust emissions ; Humidity ; Measuring instruments ; Psychrometers ; Hygrometers ; Performance evaluation ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-EOD-ES-83-1 NVFEL Library/Ann Arbor, MI 02/22/2011
NTIS  PB83-237487 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 13 p. : ill., charts ; 28 cm.
This report examines the various tests made to characterize and quantify causes of differences in results between the dew point hygrometer and the wet bulb psychrometer methods of measuring humidity. The Environmental Protection Agency Motor Vehicle Emissions Laboratory in Ann Arbor, Michigan is implementing the dew point hygrometer method in the Light Duty test cells. Tests were necessary in order to identify any potential impact on motor vehicle exhaust emissions and fuel economy test results.
Includes bibliographical references (p. 7). Technical report. "January 1983." Cover title. "EPA-AA-EOD/ES-83/1."