ASTM WK21239

    Revision of D7430 - 08 Standard Practice for Mechanical Sampling of Coal

    (What is a Work Item?)

    Active Standard: D7430 - 14

    Developed by Subcommittee: D05.23 | Committee D05 | Contact Staff Manager



    WK21239

    1. Rationale

    ASTM D 7430 - Part A states that a cutter opening should be at least 2.5 to 3 times the nominal top size of the coal. ISO 13909 states 3 times top size. The TG agreed that it was important to review the science and engineering principles to determine the correct cutter opening and specify it more clearly in the standard.


    Keywords

    auger sampling; barge sampling; coal; coal sampling; inspection; mechanical sampling; railroad car sampling; sample division; sample reduction; sampling systems; split-spoon sampling; statistical analysis; stock pile sampling; truck sampling;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    09-11-2008

    Technical Contact:
    Steven Torrell

    Status:
    Draft Under Development