United States Department of Transportation
i
Evaluation of the Thermal Effectiveness of Urethane Foam and Fiberglass as Insulation Systems for Tank Cars
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1985-12-01
[PDF-1.47 MB]
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Abstract:A total of 39 thermal fire tests were conducted using the torch fire facility for the Federal Railroad Administration. These tests were performed in accordance with the procedures presented in Title 49, Code of Federal Regulations, Part 179. 105-4. The Insulations tested were urethane foam and fiberglass. Urethane foam Is Installed on a number of railroad tank cars which are used to transport chlorine. Fiberglass constitutes the Insulation system on a number of tank cars which are used to transport other materials. In this test series, it was found that urethane foam can hold the tank car shell below 493° F in the environments which may exist In railroad accidents. This test criteria is a more stringent requirement than previously imposed for the insulation system of the chlorine tank car. The fiber· glass performed much better than anticipated when a means was provided to hold it in place in the test fixture during the tests. rt was recommended that the test specimen holder be redesigned and tests performed on fiberglass to determine If the modification fs satisfactory and to verify that fiberglass has the ability to hold the back plate temperature below 800 F.
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Content Notes:Cover has July, 1987 as the publication date. The Technical Report Documentation Page has December 1985 as the publication date.
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