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ASTM Selected Technical Papers
Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Fourth Volume
By
J Stoltzfus
J Stoltzfus
1
NASA Johnson Space Center White Sands Test Facility
?
Las Cruces, New Mexico 88004
Search for other works by this author on:
J Stradling
J Stradling
1
NASA Johnson Space Center White Sands Test Facility
?
Las Cruces, New Mexico 88004
Search for other works by this author on:
F Benz
F Benz
1
NASA Johnson Space Center White Sands Test Facility
?
Las Cruces, New Mexico 88004
Search for other works by this author on:
ISBN-10:
0-8031-1288-2
ISBN:
978-0-8031-1288-9
No. of Pages:
429
Publisher:
ASTM International
Publication date:
1989

The 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.

1.
Fiammability, Odor, and Offgassing Requirements and Test Procedures for Materials in Environments that Support Combustion
, NHB 8060.1B,
National Aeronautics and Space Administration
,
Washington, DC
,
1981
.
2.
Stradling
,
J. S.
,
Pippen
,
D. L.
, and
Frye
,
G. W.
, “
Techniques Employed by the NASA White Sands Test Facility to Ensure Oxygen System Component Safety
,” Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres, ASTM STP 812,
Werley
B. L.
, Ed.,
American Society for Testing and Materials
,
1983
, pp. 97–107.
3.
Moffett
,
G.
,
Pedley
,
M. D.
,
Schmidt
,
N.
,
Williams
,
R. E.
,
Hirsch
,
D.
, and
Benz
,
F. J.
, “
Ignition of Nonmetallic Materials by Impact of High-Pressure Gaseous Oxygen
,” Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Third Volume, ASTM STP 986,
Schroll
D. W.
, Ed.,
American Society for Testing and Materials
,
Philadelphia
,
1988
, pp. 218–232.
4.
Barthelemy
,
H.
and
Vagnard
,
G.
, “
Ignition of PTFE-Lined Hoses in High-Pressure Oxygen Systems: Test Results and Considerations for Safe Design and Use
,” Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Third Volume, ASTM STP 986,
Schroll
D. W.
, Ed.,
American Society for Testing and Materials
,
Philadelphia
,
1988
, pp. 289–304.
5.
Janoff
,
D.
,
Bamford
,
L.
,
Newton
,
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, and
Bryan
,
C. J.
, “
Ignition of PTFE-Lined Flexible Hoses by Rapid Pressurization with Oxygen
,” Symposium on Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: Fourth Volume, ASTM STP 1040,
Stoltzfus
Joel M.
,
Benz
Frank J.
, and
Stradling
Jack S.
editors,
American Society for Testing and Materials
,
Philadelphia
,
1989
.
6.
Neter
,
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,
Wasserman
,
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, and
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M. H.
,
Applied Linear Regression Models
,
Richard D. Irwin, Inc.
,
Homewood, Ill.
,
1983
, pp. 361–376.
7.
Blackstone
,
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, and
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,
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An Assessment of Impact Test Techniques for Determining the Fire or Explosion Hazards of Materials Exposed to Liquid Oxygen
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, No.
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8.
Moffett
,
G.
,
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,
M. D.
, and
Schmidt
,
N.
Evaluation of Repeatability of NHB 8060.1B Test 13 Part 1 — Ambient Pressure Liquid Oxygen Mechanical Impact
. TR-570-001,
NASA White Sands Test Facility
, Las Cruces, NM,
1988
.
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