Main Title |
Collaborative study of method for the determination of nitrogen oxide emissions from stationary sources (fossil fuel-fired steam generators) / |
Author |
Hamil, Henry F.
|
Other Authors |
|
CORP Author |
Southwest Research Inst., San Antonio, Tex.;National Environmental Research Center, Research Triangle Park, N.C. Quality Assurance and Environmental Monitoring Lab. |
Publisher |
Quality Assurance and Environmental Monitoring Laboratory, National Environmental Research Center, |
Year Published |
1973 |
Report Number |
EPA-650/4-74-025; EPA-68-02-0623 |
Stock Number |
PB-238 555 |
OCLC Number |
15145812 |
Subjects |
Air--Pollution--Measurement ;
Nitrogen oxides ;
Environmental monitoring ;
Steam-boilers--Environmental aspects
|
Additional Subjects |
Nitrogen oxides ;
Flue gases ;
Gas analysis ;
Electric power plants ;
Steam electric power generation ;
Accuracy ;
Calibrating ;
Colorimetric analysis ;
Quantitative analysis ;
Air pollution detection ;
Phenol disulfonic acid analysis
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 650-4-74-025 |
|
Headquarters Library/Washington,DC |
06/09/2015 |
EKBD |
EPA-650/4-74-025 |
|
Research Triangle Park Library/RTP, NC |
09/05/2017 |
ELBD ARCHIVE |
EPA 650-4-74-025 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
NTIS |
PB-238 555 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
91 pages in various pagings : illustrations, tables ; 28 cm. |
Abstract |
A collaborative study was performed on Method 7 proposed by the EPA for determining the nitrogen oxide emissions from stationary sources. Method 7 specifies the collection of a grab sample in an evacuated flash containing a dilute sulfuric acid-hydrogen peroxide absorbing solution, and the colorimetric measurement of the nitrogen oxides, except nitrous oxide, using the phenoldisulfonic acid procedure. Collaborative tests were conducted at both a coal-fired steam generating power plant and an oil-fired pilot plant by four collaborative teams. Because of chemically significant distortions inherent in the gas cylinder accuracy test, the accuracy of Method 7 could not be adequately demonstrated. The estimated minimum detectable limit of Method 7 is 5.14 x 10 to the -7th power lb./s.c.f. Most of the apparent laboratory bias variation actually is not a true laboratory effect but rather a day effect primarily caused by dubious daily spectrophotometer re-calibration procedures. |
Notes |
"October 1973." Prepared for the U.S. Environmental Protection Agency. Contract Number: 68-02-0623 |