| Main Title |
Material Compatibility Evaluations of HFC-245ca, HFC-245fa, HFE-125, HFC-236ea, and HFC-236fa. |
| Author |
Ratanaphruks, K. ;
Tufts, M. W. ;
Ng, A. S. ;
Smith, N. D. ;
|
| CORP Author |
Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Publisher |
1997 |
| Year Published |
1997 |
| Report Number |
EPA-68-D4-0005; EPA/600/A-96/129; |
| Stock Number |
PB97-193619 |
| Additional Subjects |
Hydrofluorocarbons ;
Compatibility ;
Stability ;
Chemical reactivity ;
Elastomers ;
Plastics ;
Metals ;
Desiccants ;
Rubbers ;
Emissions ;
Performance tests ;
Refrigerants ;
Alternatives ;
Environmental chemical substitutes ;
Hydrofluoroethers ;
HFC-245ca ;
HFC-245fa ;
HFE-125 ;
HFC-236ea ;
HFC-236ta
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB97-193619 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
14p |
| Abstract |
The paper presents data pertaining to stability and material compatibilities determined for HFC-245ca. HFC-245fa, HFE-125, HFC-236ea, and HFC-236fa. Following ASHRAE guidelines, material compatibility tests using 11 elastomers, 4 plastics, 5 metals, and 4 desiccants were conducted with the aforementioned refrigerants in both the presence and the absence of a polyolester (POE) lubricant. The metals (copper, steel, aluminum, brass, and bronze) were found to be compatible with both the refrigerants and the POE oil. Trace amounts of fluorine-containing byproducts were detected by gas chromatography/mass spectroscopy for all four desiccants. Based on physical characteristics, unsatisfactory performance across all refrigerants with and without lubricant was found with fluoropolymers, hydrogenated nitrile butyl rubber, natural rubber, and Neoprene. |
| Supplementary Notes |
Presented at the International Conference of Ozone Protection Technology, Washington, DC., October 21-23, 1996. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div. |
| Availability Notes |
Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)321-8547; and email at orders@ntis.fedworld.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| NTIS Title Notes |
Rept. for Oct 94-Aug 96. |
| Category Codes |
71M; 99F; 68A |
| NTIS Prices |
PC A03/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
731601160 |
| Origin |
NTIS |
| Type |
CAT |
