| Main Title |
Improved temperature stability of sulfur dioxide samples collected by the Federal reference method / |
| Author |
Fuerst, Robert G.
|
| Other Authors |
|
| CORP Author |
Environmental Monitoring and Support Lab., Research Triangle Park, N.C. Quality Assurance Branch. |
| Publisher |
Environmental Monitoring and Support Laboratory, Quality Assurance Branch, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1978 |
| Report Number |
EPA-600/4-78-018 |
| Stock Number |
PB-279 873 |
| OCLC Number |
52971187 |
| Additional Subjects |
Sulfur dioxide ;
Gas analysis ;
Samples ;
pH ;
Chemical analysis ;
Temperature ;
Stability ;
Mercury inorganic compounds ;
Chlorine inorganic compounds ;
Ions ;
Reaction kinetics ;
Concentration ;
Air pollution detection ;
Federal reference method ;
Mercurate/tetrachloro ;
Chloride ions
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600/4-78-018 |
|
Headquarters Library/Washington,DC |
06/18/2004 |
| EKBD |
EPA-600/4-78-018 |
|
Research Triangle Park Library/RTP, NC |
09/05/2003 |
| ELBD ARCHIVE |
EPA 600-4-78-018 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ESAD |
EPA 600-4-78-018 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-279 873 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
vi, 34 p. : ill. ; 28 cm. |
| Abstract |
This report describes an examination of the reagents present in the SO2 Federal Reference Method (FRM) to determine if any change in reagent concentration or condition could bring about substantial, if not complete, retardation of the effect of temperature on the stability of collected SO2 samples. The parameters initially evaluated were pH, tetrachloromercurate (TCM), and chloride ion concentration. With the development of a modified collecting solution based on these studies (0.04M TCM with a Hg(+2) to Cl(-) of 1/16), collection efficiency and order of reaction of the modified collecting reagent were determined. Using an Arrhenius plot of the experimental data, an equation was derived which describes the relationship between rate of decay of collected SO2 samples and temperature. The modified collecting reagent was found to increase the stability of the collected SO2 samples over a wider temperature range. Thus the effect of temperature was reduced by about 10C when compared against previous SO2 FRM data. The improvements developed here could be used to liberalize the present temperature specification required to insure the stability of collected SO2 samples. |
| Notes |
"April 1978"--Cover. Includes bibliographical references. "EPA-600/4-78-018." |
| Place Published |
Research Triangle Park, N.C. |
| Access Notes |
Also available via the World Wide Web |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Development. Environmental Monitoring and Support Laboratory. Quality Assurance Branch.; United States. Environmental Protection Agency. Office of Research and Development.; United States. Environmental Protection Agency. |
| Corp Au Ser Add Ent |
United States. Environmental Protection Agency. Environmental monitoring series ; EPA-600/4-78-018. |
| PUB Date Free Form |
1978 |
| Series Title Untraced |
Environmental monitoring series ; EPA-600/4-78-018 |
| NTIS Prices |
PC A03/MF A01 |
| BIB Level |
m |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20140912131638 |
| Language |
eng |
| Origin |
OCLC |
| Type |
MERGE |
| OCLC Rec Leader |
01544cam 2200313Ka 45020 |
