ASTM WK30494

    Revision of D7430 - 10a Standard Practice for Mechanical Sampling of Coal

    (What is a Work Item?)

    Active Standard: D7430 - 15

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



    WK30494

    1. Rationale

    Several Members have requested D-7430 Part D: Section 30.3.1 on Preparation of Bias Test Samples be modified. The concern is crushing and riffling coals that exhibit rapid moisture loss before air drying will bias test results. Not all coals exhibit this condition therefore the additional air drying of bulk samples is not necessary. The following is being suggested for those that do.


    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; Mechanical sampling systems; Sampling; Coal/coke products; Coal products;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    09-30-2010

    Technical Contact:
    Charles Dunaway

    Status:
    Draft Under Development