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  • 1
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    An Approach to the Flammability Testing of Aerospace Materials (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Presentation reviews: (1) Current approach to evaluation of spacecraft materials flammability (2) The need for and the approach to alternative routes (3) Examples of applications of the approach recommended a) Crew Module splash down b) Crew Module depressurization c) Applicability of NASA's flammability test data to other sample configurations d) Applicability of NASA's ground flammability test data to spacecraft environments
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-26516 , NASA/Hokkaido University/JAXA Technical Interchange Meeting; Jun 05, 2012; Las Cruces, NM; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Applicability of ISO 16697 Data to Spacecraft Fire Fighting Strategies (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Presentation Agenda: (1) Selected variables affecting oxygen consumption during spacecraft fires, (2) General overview of ISO 16697, (3) Estimated amounts of material consumed during combustion in typical ISS enclosures, (4) Discussion on potential applications.
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-27235 , ISO Space Systems and Operations Working Group on Spacecraft Materials and Processes and Human Space Flight; Oct 23, 2012 - Oct 25, 2012; Las Cruces, NM; United States
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  • 3
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    Remarks on Flammability Testing of Aerospace Materials (2013)
    In:  CASI
    Details
    Publication Date: 2019-08-13
    Description: Agenda for the presentation: (1) Brief background of ISO 16697 (a) Reasons for the approach (b) Stated intent for this International Technical Specification (2) Evolution of initial considerations for the ISO approach (3) Discussion and recommendation
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-28174 , NASA/JAXA Technical Interchange Meeting; Mar 08, 2013; Las Cruces, NM; United States
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  • 4
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    Development of a Standard Test Scenario to Evaluate the Effectiveness of Portable Fire Extinguishers on Lithium-ion Battery Fires (2013)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Many sources of fuel are present aboard current spacecraft, with one especially hazardous source of stored energy: lithium ion batteries. Lithium ion batteries are a very hazardous form of fuel due to their self-sustaining combustion once ignited, for example, by an external heat source. Batteries can become extremely energetic fire sources due to their high density electrochemical energy content that may, under duress, be violently converted to thermal energy and fire in the form of a thermal runaway. Currently, lithium ion batteries are the preferred types of batteries aboard international spacecraft and therefore are routinely installed, collectively forming a potentially devastating fire threat to a spacecraft and its crew. Currently NASA is developing a fine water mist portable fire extinguisher for future use on international spacecraft. As its development ensues, a need for the standard evaluation of various types of fire extinguishers against this potential threat is required to provide an unbiased means of comparing between fire extinguisher technologies and ranking them based on performance.
    Keywords: Chemistry and Materials (General)
    Type: International Conference on Environmental Systems (ICES); Jul 14, 2013 - Jul 18, 2013; Vail, CO; United States
    Format: application/pdf
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  • 5
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    Criteria for Selection of Materials for a Flammability Test on ISS (2012)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-26515 , NASA/Hokkaido University/JAXA Technical Interchange Meeting; Jun 05, 2012; Las Cruces, NM; United States
    Format: application/pdf
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  • 6
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    Upward Flame Propagation and Wire Insulation Flammability: 2006 Round Robin Data Analysis (2007)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This viewgraph document reviews test results from tests of different material used for wire insulation for flame propagation and flammability. The presentation focused on investigating data variability both within and between laboratories; evaluated the between-laboratory consistency through consistency statistic h, which indicates how one laboratory s cell average compares with averages from other labs; evaluated the within-laboratory consistency through the consistency statistic k, which is an indicator of how one laboratory s within-laboratory variability compares with the variability of other labs combined; and extreme results were tested to determine whether they resulted by chance or from nonrandom causes (human error, instrument calibration shift, non-adherence to procedures, etc.)
    Keywords: Chemistry and Materials (General)
    Type: NASA/JAXA Technical Interchange Meeting; Jun 04, 2007 - Jun 08, 2007; Tsukuba; Japan
    Format: application/pdf
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  • 7
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    An Approach to Evaluate Precision and Inter-Laboratory Variability of Flammability Test Methods for Aerospace Materials (2005)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Materials selection for spacecraft is based on conventional flammability or ignition sensitivity acceptance tests. Current procedures for determining the inter-laboratory repeatability and reproducibility of aerospace materials flammability tests are not considering the dependence of data variability on test conditions and consequently attempts to characterize the precision of these methods were not successful. The inter-laboratory data variability is determined with tests conducted under arbitrary conditions, which consequently may not provide sufficient information to enable adequate determination of a method's precision. For evaluating the precision of NASA's flammability test methods, the protocol recommended includes selecting critical parameters and determining the 50% failure point by considering the specific failure criteria of each method using the critical parameter as a variable. Upon performing inter-laboratory round robin testing using this approach, the laboratories' performance could be evaluated by comparing the repeatability of the 50% failure point and/or the repeatability of critical conditions where the probabilities of passing and failing are unity, i.e., the transition zone repeatability. When a sufficient amount of data has been acquired with this method, an adequate estimation of precision of aerospace materials flammability test methods will be possible.
    Keywords: Chemistry and Materials (General)
    Type: 05ICES-21 , 35th International Conference on Environmental Systems (ICES); Jul 11, 2005 - Jul 14, 2005; Rome; Italy
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  • 8
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    Remarks on Applicability of Flammability Threshold Approach to the Evaluation of Spacecraft Materials (2014)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-30320 , Space Systems Materials Flammability TIM; Jan 23, 2014 - Jan 24, 2014; Tsukuba; Japan
    Format: application/pdf
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  • 9
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    Current Trends on the Applicability of Ground Aerospace Materials Test Data to Space System Environments (2010)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: This slide presentation discusses the application of testing aerospace materials to the environment of space for flammability. Test environments include use of drop towers, and the parabolic flight to simulate the low gravity environment of space.
    Keywords: Chemistry and Materials (General)
    Type: JSC-CN-20584 , International Organization for Standardization: Technical Committee 20, SC14 on Space Systems and Operations Plenary Meeting; May 10, 2010 - May 14, 2010; London, England; United Kingdom
    Format: application/pdf
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  • 10
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    Determination of Time Required for Materials Exposed to Oxygen to Return to Reduced Flammability (2009)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Increased material flammability due to exposure to high oxygen concentrations is a concern from both a safety and operational perspective. Localized, high oxygen concentrations can occur when exiting a higher oxygen concentration environment due to material saturation, as well as oxygen entrapment between barrier materials. Understanding of oxygen diffusion and permeation and its correlation to flammability risks can reduce the likelihood of fires while improving procedures as NASA moves to longer missions with increased extravehicular activities in both spacecraft and off-Earth habitats. This paper examines the time required for common spacecraft materials exposed to oxygen to return to reduced flammability after removal from the increased oxygen concentration environment. Specifically, NASA-STD-6001A maximum oxygen concentration testing and ASTM F-1927 permeability testing were performed on Nomex 4 HT90-40, Tiburon 5 Surgical Drape, Cotton, Extravehicular Mobility Unit (EMU) Liquid-Cooled Ventilation Garment, EMU Thermal Comfort Undergarment, EMU Mosite Foam with Spandex Covering, Advanced Crew Escape Suit (ACES) Outer Cross-section, ACES Liquid Cooled Garment (LCG), ACES O2 Hose Material, Minicel 6 Polyethylene Foam, Minicel Polyethylene Foam with Nomex Covering, Pyrell Polyurethane Foam, and Zotek 7 F-30 Foam.
    Keywords: Chemistry and Materials (General)
    Type: JSC-17607 , Sixth International Workshop On Dosimetry For Radiation Processing; Oct 04, 2009 - Oct 09, 2009; Ettlingen; Germany
    Format: application/pdf
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