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RECORD NUMBER: 11 OF 23

Main Title Field Reliability of the Orsat Analyzer.
Author Mitchell, William J. ; Midgett., M. Rodney ;
CORP Author Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Quality Assurance Branch.
Year Published 1976
Report Number EPA/600/J-76/048;
Stock Number PB-266 313
Additional Subjects Gas detectors ; Air pollution ; Field tests ; Experimental design ; Particles ; Molecular weights ; Concentration(Composition) ; Flue gases ; Carbon dioxide ; Oxygen ; Combustion products ; Industrial wastes ; Reprints ; Orsat analyzer ; Air pollution sampling ; Fyrite
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-266 313 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 6p
Abstract Results from four field based collaborative tests and from one laboratory based collaborative test of the Orsat analytical procedure are discussed. The results from the five collaborative tests demonstrate that routinely using Orsat data to convert particulate emissions from combustion sources to the reference conditions of 50% excess air and 12% carbon dioxide may introduce sizeable errors in the corrected particulate loading. Ways to improve the Orsat apparatus and increase the reliability of the data are suggested. Also reported are the results from field and laboratory studies on the reliability of using individual carbon dioxide and oxygen analyzers of the Fyrite type to determine stack gas molecular weight. The laboratory study, which was done using three cylinders containing mixtures of carbon dioxide, oxygen, carbon monoxide, and nitrogen of known concentration, determined that these analyzers give carbon dioxide and oxygen analyses of sufficient reliability to yield accurate molecular weights. The results of the field studies, which were done on actual flue gas samples, also support this conclusion.
Supplementary Notes Pub. in APCA Journal, v26 n5 p491-495 May 76.
NTIS Title Notes Journal article.
Title Annotations +++Reprint: Field Reliability of the Orsat Analyzer.
PUB Date Free Form 1976
Category Codes 14B; 68A
NTIS Prices PC A02/MF A01
Primary Description 600/08
Document Type NT
Cataloging Source NTIS/MT
Control Number 323716480
Origin NTIS
Type CAT