Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Standardization of Method 11 at a Petroleum Refinery. Volume II.
Author Scheil, George W. ; Sharp., Michael C. ;
CORP Author Midwest Research Inst., Kansas City, Mo.;Environmental Monitoring and Support Lab., Research Triangle Park, N.C.
Year Published 1977
Report Number EPA-68-02-1098; EPA/600/4-77/008b;
Stock Number PB-266 887
Additional Subjects Petroleum industry ; Refineries ; Gas analysis ; Hydrogen sulfide ; Revisions ; Thiols ; Industrial wastes ; Combustion products ; Laboratory equipment ; Sampling ; Chemical analysis ; Statistical analysis ; Concentration(Composition) ; Samplers ; Design criteria ; Field tests ; Sites ; Procedures ; Air pollution detection ; Stationary sources ; EPA method 11
Library Call Number Additional Info Location Last
NTIS  PB-266 887 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 102p
A collaborative test was run of the revised Method 11 procedures that was developed in Volume I. Ten collaborators were selected from a total of 24 interested organizations. Part of the screening process was to require each potential collaborator to analyze a set of liquid samples in accordance with the procedure. A test manifold was constructed which could simulate typical refinery fuel gas streams. During February 22 to 27, 1976, a total of 16 runs at three different H2S levels were made, as well as a series of standard sample analyses. MRI then made a statistical analysis of the collaborators' results. Without mercaptans present, results averaged 4 percent low with a standard deviation of 2 percent for any single collaborator and a standard deviation between collaborators of 4 percent. With mercaptans present at 150 ppm, precision was unaffected but the results varied from 2 percent low to 14 percent high at H2S concentrations of 400 and 100 mg/dscm. The tentative procedure was found to be adequately written for those knowledgeable of sampling and analysis techniques.