ASTM WK30494

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

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    Active Standard: D7430 - 15b

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


    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.


    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:

    Technical Contact:
    Charles Dunaway


    D05.23 (15-02)

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