ASTM WK55958

    Revision of F2788 / F2788M - 15 Standard Specification for Metric and Inch-sized Crosslinked Polyethylene (PEX) Pipe

    (What is a Work Item?)

    Active Standard: F2788 / F2788M - 15

    Developed by Subcommittee: F17.26 | Committee F17 | Contact Staff Manager



    WK55958

    1. Rationale

    The proposed revision is to address a lack of information in the standard regarding the cross-linking of PEX manufactured using the silane process. Cross-linking of silane grafted polyethylene takes place after the extrusion process and is dependent on the geometry of the product, cross-linking time and temperature. The cross-linking process may also be delayed with the possibility that it may not be carried out at the same site where the pipe was originally extruded. Specific guidance needs to be added to the standard to properly address these concerns.


    Keywords

    crosslinked polyethylene; hydrostatic stress; PEX; PPI; pipe; pressure;;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    09-12-2016

    Technical Contact:
    Robert Samplonius

    Status:
    Draft Under Development