Ignition of Nonmetallic Materials by Impact of High-Pressure Gaseous Oxygen / GE. Moffett, MD. Pedley, N. Schmidt, RE. Williams, D. Hirsch, FJ. Benz

Conference Author:: Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Third Volume (3rd : 1987 : Cambridge, England)
Physical Description:: 1 online resource (15 pages) : illustrations, figures, tables
Additional Creators:: Benz, FJ., Hirsch, D., Moffett, GE., Pedley, MD., Schmidt, N., Williams, RE., American Society for Testing and Materials, and ASTM International

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Summary:

The pneumatic impact test has long been used to screen nonmetallic materials for oxygen service. This method is also used to rank batches or lots of particular materials. A study has been made to evaluate the sources of variability in the test and to determine the mechanism of ignition. The results of the study show that much of the variability in test data observed in the past can be eliminated by better control of system cleanliness, tightening the specifications for the opening time of the high-speed valve, and conducting tests over a wide range of pressures and using the logistic statistical model to analyze the data. Though the mechanism of ignition was not determined conclusively, it is probably heating of the oxygen initially in the test chamber by adiabatic compression; heating of gases trapped in void spaces within the material could also be important. Further research is recommended to determine if batch or lot control has any value and if specimen preparation and conditioning significantly affect the test results.

Dates of Publication and/or Sequential Designation:

Volume 1988, Issue 986 (January 1988)

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ISBN:

9780803150553 (e-ISBN)
9780803109988
0803109989

Digital File Characteristics:

text file PDF

Bibliography Note:

Includes bibliographical references 14.

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Also available online via the World Wide Web. Tables of contents and abstracts freely available; full-text articles available by subscription.
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Also available in PDF edition.

Reproduction Note:

Electronic reproduction. W. Conshohocken, Pa. : ASTM International, 1988. Mode of access: World Wide Web. System requirements: Web browser. Access may be restricted to users at subscribing institutions.

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Mode of access: World Wide Web.

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ASTM International PDF Purchase price USD25.

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