ASTM WK34196

    Withdrawal of D7200 - 06 Standard Practice for Sampling and Counting Airborne Fibers, Including Asbestos Fibers, in Mines and Quarries, by Phase Contrast Microscopy and Transmission Electron Microscopy

    (What is a Work Item?)

    Active Standard: D7200 - 12

    Developed by Subcommittee: D22.04 | Committee D22 | Contact Staff Manager



    WK34196

    This standard is being balloted for withdrawal with no replacement because Round-robin testing of this standard showed that, when put into practice, the method fails catastrophically.


    Keywords

    air monitoring; asbestos; fibers; membrane filter method; mines and quarries; phase contrast microscopy; sampling and analysis;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    07-21-2011

    Technical Contact:
    Kevin Ashley

    Item:
    028

    Ballot:
    D22 (11-03)

    Status:
    Negative Votes Need Resolution