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Ignition of nonmetallic materials by impact of high-pressure oxygen. II - Evaluation of repeatability of pneumatic impact testThe gaseous oxygen pneumatic impact test is used to evaluate the suitability of nonmetallic materials for use in high-pressure oxygen systems. The test was evaluated by testing the reactivity of four materials over a range of impact pressures. The evaluation also investigated the effect of valve opening time and other test variables on the frequency of reaction. The variability of the data obtained for each test material was too large for the test method to be capable of distinguishing other than gross differences in the reactivity of materials. No relation was found between this variability and changes in valve opening time and other test variables. The materials studied were found to be unacceptable for use as reference standards. Because of the high variability of the test data, it is recommended that new methods be developed for evaluating the suitability of materials for use in high-pressure oxygen systems.
Document ID
19910032230
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schmidt, Naomi
(NASA White Sands Test Facility NM, United States)
Moffett, Gary E.
(NASA White Sands Test Facility; Lockheed Engineering and Sciences Co. Las Cruces, NM, United States)
Pedley, Michael D.
(NASA Johnson Space Center; Lockheed Engineering and Sciences Co. Houston, TX, United States)
Linley, Larry J.
(NASA White Sands Test Facility Las Cruces, NM, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1989
Subject Category
Nonmetallic Materials
Meeting Information
Meeting: International Symposium on Flammability and sensitivity of materials in oxygen-enriched atmospheres
Location: Las Cruces, NM
Country: United States
Start Date: April 11, 1989
End Date: April 13, 1989
Sponsors: ASTM
Accession Number
91A16853
Distribution Limits
Public
Copyright
Other

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