Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Development of an Acetylene Monitor at the Part Per Billion Level.
Author Dencker, W. ; Robinson, M. ; Villalobos., R. ;
CORP Author Beckman Instruments, Inc., Anaheim, Calif.;National Environmental Research Center, Research Triangle Park, N.C. Chemistry and Physics Lab.
Year Published 1974
Report Number EPA-68-02-0778; EPA-ROAP-56AAI; EPA/650/2-74-056;
Stock Number PB-238 474
Additional Subjects Acetylene ; Gas sampling ; Gas detection ; Gas chromatography ; Air pollution ; Exhaust gases ; Microanalysis ; Samplers ; Portable equipment ; Design ; Wiring diagrams ; Air pollution detection ; Automobile exhaust ; Tracers ; Molecular sieves
Library Call Number Additional Info Location Last
NTIS  PB-238 474 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 32p
The purpose of this contract was to develop instrumentation for the collection and analysis of atmospheric acetylene at the part per billion level. The reason for measuring acetylene is that it comes primarily from vehicular exhausts and thus can be used as a tracer of pollution from urban to rural areas. The approach used was an automated concentration technique whereby one liter of air was collected in a 1-1/2 x 1/8 inch tube filled with molecular sieve. The trapped contents were then automatically flushed into a gas chromatograph for separation and assay of acetylene. This collection and analysis system was designed to automatically perform three acetylene analysis per hour at acetylene concentrations ranging from .03 to 250 PPB. A portable collection device, in addition to the automated collection and analysis instrumentation, was also developed for the collection of acetylene in locations far removed from the analyzer. The collection devices used in the portable sampler were identical to the collection device on the gas chromatograph.