ASTM WK32760

    Revision of D1238 - 10 Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

    (What is a Work Item?)

    Active Standard: D1238 - 13

    Developed by Subcommittee: D20.30 | Committee D20 | Contact Staff Manager



    WK32760

    1. Rationale

    The proposed new procedure E focuses on the melt index measurement of polymer materials with a melt index lower than 1 gr/10min. Main issue in this procedure is to fulfill the need to establish a steady state flow for a single melt index measurement, in conformity with rheological principles in rheometry, to increase accuracy, precision and capability, not only consistency.


    Keywords

    melt flow rate; melt index; volume flow rate; Acrylonitrile-butadiene-styrene (ABS); Extrusion plastometer; Flow and flow rate--thermoplastics; Fluoropolymers; Polycarbonate (PC); Polymers; Thermoplastics;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    03-30-2011

    Technical Contact:
    Paul Oconnell

    Item:
    007

    Ballot:
    D20 (13-03)

    Status:
    Negative Votes Need Resolution