ASTM WK64298

    Revision of C40 / C40M - 16 Standard Test Method for Organic Impurities in Fine Aggregates for Concrete

    (What is a Work Item?)

    Active Standard: C40 / C40M - 16

    Developed by Subcommittee: C09.20 | Committee C09 | Contact Staff Manager


    1. Rationale

    We have recently become aware of changes in the Gardner Color Scale referenced in this standard. The Gardner Numbers listed in this standard must be updated to match the present Gardner Colors.


    colorimetric test; fine aggregate; organic impurities;;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:

    Technical Contact:
    Stuart Schwotzer

    Draft Under Development