| Main Title |
Effect of Specimen Size, Shape, and Orientation on Dry Deposition to Galvanized Steel Surfaces. |
| Author |
Spence, J. W. ;
Lipfert, F. W. ;
Katz, S. ;
|
| CORP Author |
Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab. ;Environmental Consultant, Northport, NY. ;ManTech Environmental Technology, Inc., Research Triangle Park, NC. ;State Univ. of New York at Buffalo. |
| Publisher |
12 Apr 93 |
| Year Published |
1993 |
| Report Number |
EPA/600/J-94/311; |
| Stock Number |
PB94-192788 |
| Additional Subjects |
Corrosion products ;
Air pollution effects(Materials) ;
Deposition ;
Galvanized materials ;
Steels ;
Dry methods ;
Exposure ;
Environmental transport ;
Wind velocity ;
Surface chemistry ;
Environmental effects ;
Atmospheric temperature ;
Reprints ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB94-192788 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
11p |
| Abstract |
An analysis is presented of the variability in chemical composition of soluble corrosion products on galvanized steel specimens exposed at Research Triangle Park, NC, in the absence of natural precipitation. The specimens varied in size, shape, orientation angle, and previous exposure history. The soluble corrosion products were assumed to represent the effects of dry deposition of airborne substances, which were deduced to include SO2, NOy (presumed HNO3), Cl(-) (presumably HCl), and Ca(+2) (presumably from coarse particles), based on statistical analysis of their variability in relation to atmospheric conditions. The most important specimen characteristic was previous exposure history. Deposition of gases was dependent upon surface conditions, wind speed, and temperature, and to a lesser extent orientation angle. Depositon of particles was dependent upon specimen surface orientation. Soluble zinc loss varied with Reynolds number to the -0.2 power even though Reynolds numbers based on average wind speeds were well below those classically expected to produce turbulent flow. |
| Supplementary Notes |
Pub. in Atmospheric Environment, v27A n15 p2327-2336 1993. See also PB89-181259. Prepared in cooperation with Environmental Consultant, Northport, NY., ManTech Environmental Technology, Inc., Research Triangle Park, NC., and State Univ. of New York at Buffalo. |
| NTIS Title Notes |
Journal article. |
| Category Codes |
68A; 71G; 71J; 71L |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/09 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
425925467 |
| Origin |
NTIS |
| Type |
CAT |
