STP1561: A Comparison of Fire Reaction Effects of Halogenated Versus Non-Halogenated Non-Metals in High-Pressure Oxygen Components

    Forsyth, Bradley S.
    Wendell Hull and Associates, Inc., Las Cruces, NM

    Chiffoleau, Gwenael J. A.
    Wendell Hull and Associates, Inc., Las Cruces, NM

    Odom, Greg A.
    Wendell Hull and Associates, Inc., Las Cruces, NM

    Newton, Barry E.
    Wendell Hull and Associates, Inc., Las Cruces, NM

    Pages: 17    Published: Nov 2012


    Abstract

    Some high-pressure oxygen-breathing gas components have been transitioning from predominantly halogenated (fluorinated or chlorinated) polymers to non-halogenated materials for seats and seals. The rationale for the material changes was related to reducing the risk associated with production of toxic combustion by-products in the event of a component fire. This paper neither discusses the risks associated with toxicity, nor does it attempt to determine which risk (ignition or toxicity) is preeminent. Rather, examples of fires in components from a component test program are examined to compare the reaction effects for components configured with halogenated and non-halogenated materials. A limited comparison of the test results to actual field fires is also provided. The implications of the ignition and fire effects are discussed.

    Keywords:

    oxygen fire, reaction effect, halogenated non-metals, non-halogenated non-metals, polymers


    Paper ID: STP20120014

    Committee/Subcommittee: G04.01

    DOI: 10.1520/STP20120014


    CrossRef ASTM International is a member of CrossRef.