...Aditi Oza; Sudipto Ghosh; Kanchan Chowdhury It is essential to maintain cleanliness in an oxygen system as many accidents occurring in oxygen-enriched environment indicate contamination as a major source of ignition. Computational fluid dynamics (CFD) analyses show that valve seats, T-joints...

... considering oxygen compatibility of materials, toxicity of combustion products, ignition mechanisms, and reaction effects of a fire. Journal of ASTM International, Vol. 6, No. 10 Paper ID JAI102296 Available online at www.astm.org Elliot T. Forsyth,1 Barry E. Newton,2 Gwenael J. A. Chiffoleau,3 and Brad...

... Method for Compatibility of Materials with Liquid Oxygen,” have been done to ensure the good control of oxygen content in the cryogenic liquid and to get reproducible results in aluminum ignition with hydrocarbon coating. Modified striker pins with a cavity on the contact surface have been used...

...Kyle M. Sparks; Joel M. Stoltzfus; Theodore A. Steinberg; David Lynn Promoted ignition testing [1–3] is used to determine the relative flammability of metal rods in oxygen-enriched atmospheres. In these tests, a promoter is used to ignite each metal rod to start the sample burning. Experiments were...

...Aditi Oza; Sudipto Ghosh; Kanchan Chowdhury Contamination particles make an oxygen system more vulnerable to fire hazard as they provide a large surface area with reduced minimum energy of ignition. Adiabatic compression, resonance, solid friction, flow friction, and promoted ignition have acted...

...Gwenael J. A. Chiffoleau; Jared D. Hooser; Barry E. Newton; Alain Colson Currently, no test standard exists for quantifying the ignitability of metallic materials in oxygen. Metallic materials are consistently used at oxygen pressures significantly greater than their associated burn limits. Oxygen...

... Metal 617, Haynes® 230, Haynes 214, Hastelloy X, 310 stainless steel, alonized Haynes 230, 304 stainless steel, and alonized Incoloy 800 HT. Michael J. Slockers1 and Rosemary Robles-Culbreth1 Journal of ASTM International, Vol. 3, No. 9 Paper ID JAI13561 Available online at www.astm.org Ignition...

... is a proven ignition mechanism, which must be considered and understood in the design of an oxygen system. The use of test data from this test method has been questioned because of the lack of a clear method of application of the data and variability found between tests, material batches, and facilities...

...D Hirsch; S Motto; G Peyton; H Beeson ASTM G 86 “Standard Test Method for Determining Ignition Sensitivity of Materials to Mechanical Impact in Ambient Pressure Liquid Oxygen and Pressurized Liquid and Gaseous Oxygen” and ASTM G 74 “Standard Test Method for Ignition Sensitivity of Materials...

... was killed by the explosion of such a cylinder during use; the accident was attributed to the violent reaction of the oxygen (contained in the compressed air) with the plastic liner. In the paper, the ignition mechanisms are investigated and recommendations are provided to avoid any repetitions...

...G Chiffoleau; B Newton; NJH Holroyd; S Havercroft Published reports of burning aluminum in oxygen using ASTM G 124-type testing demonstrated that aluminum alloys are difficult to ignite but once ignited are extremely flammable in terms of regression rate and energy release. The ignition resistance...

...G Chiffoleau; B Newton; NJH Holroyd; S Havercroft Over the past 30 years a handful of fires in medical oxygen high pressure gas storage systems involving aluminum alloy cylinders have been deemed to be associated with mechanical impact-induced ignition of a contaminated system. For example...

..., this paper explains how this test method was developed and improved over the years and how harmonization was reached in the various Standards. Finally, a proposal for future work is outlined. 17 10 2005 05 01 2006 02 2006 oxygen test adiabatic compression ignition equipment...

...OM Putzeys; A Carlos Fernandez-Pello; DL Urban Results are presented from an experimental study on the ignition of the combustion modified (fire retarded) polyurethane foam Pyrell® (35.3 kg/m 3 and 64.0 kg/m 3 ) in elevated oxygen concentrations, ranging from 30 % to 60 %. The samples are exposed...