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    Volume 3, Issue 5 (May 2006)

    Combustion Tests Under High Pressure Oxygen: Promoted Ignition Combustion Test Versus Metallic Disk Ignition Test

    (Received 14 October 2005; accepted 1 February 2006)

    CODEN: JAIOAD

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    Abstract

    Two different test apparatuses are used at BAM to evaluate the safety of oxygen components: First, the “promoted ignition combustion test” according to ASTM G 124 [1] and to EIGA IGC Doc 13/02/E [2], and second, the new “metallic disk ignition test” that has not been standardized yet. The standard test method ASTM G 124 allows a ranking of metallic materials for use at high pressure oxygen. However, the transfer of those test results to valves and fittings in real-life situations is rather complex. The “metallic disk ignition test,” developed at BAM, is more practice oriented and uses metallic disks of different thicknesses of the investigated material. A commonly used nonmetallic sealing ring is placed in front of this disk and serves as an igniter. This test array is then exposed to high pressure gaseous oxygen impacts in a standardized pneumatic impact tester according to DIN EN 1797 [3].


    Author Information:

    Binder, C
    Specialists of Working Group “Safe Handling of Oxygen,” Division II.1 “Gases, Gas Plants,”, Federal Institute for Materials Research and Testing (BAM), Berlin,

    Kasch, T
    Specialists of Working Group “Safe Handling of Oxygen,” Division II.1 “Gases, Gas Plants,”, Federal Institute for Materials Research and Testing (BAM), Berlin,

    Lehné, S
    Specialists of Division VIII.2 “Surface Technology”, Federal Institute for Materials Research and Testing (BAM), Berlin,

    Beck, U
    Specialists of Division VIII.2 “Surface Technology”, Federal Institute for Materials Research and Testing (BAM), Berlin,

    Weise, M
    Specialists of Division VIII.2 “Surface Technology”, Federal Institute for Materials Research and Testing (BAM), Berlin,

    Sahre, M
    Specialists of Division VIII.2 “Surface Technology”, Federal Institute for Materials Research and Testing (BAM), Berlin,


    Stock #: JAI13532

    ISSN: 1546-962X

    DOI: 10.1520/JAI13532

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    Author
    Title Combustion Tests Under High Pressure Oxygen: Promoted Ignition Combustion Test Versus Metallic Disk Ignition Test
    Symposium Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres, 2006-10-20
    Committee G04