ASTM WK61545

    Revision of D7458 - 14 Standard Test Method for Determination of Beryllium in Soil, Rock, Sediment, and Fly Ash Using Ammonium Bifluoride Extraction and Fluorescence Detection

    (What is a Work Item?)

    Active Standard: D7458 - 14

    Developed by Subcommittee: D18.06 | Committee D18 | Contact Staff Manager



    WK61545


    Keywords

    beryllium; environment; fluorescence; fly ash; rock; sediment; soil;

    Rationale

    This standard is being updated in consideration of newly available performance data on use of dye solutions which do not contain lysine. Lysine is derived from natural sources, and has different impurities depending on the source which can result in inconsistent background. Lysine-free dye solution is easier to make and the lysine-free dye solution has been shown to provide superior detection limits.

    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    12-20-2017

    Technical Contact:
    Michael Brisson

    Status:
    Draft Under Development