ASTM WK43134

    Revision of D4821 - 07e1 Standard Guide for Carbon Black - Validation of Test Method Precision and Bias

    (What is a Work Item?)

    Active Standard: D4821 - 14

    Developed by Subcommittee: D24.61 | Committee D24 | Contact Staff Manager



    WK43134

    1. Rationale

    The first lot of the HT iodine number reference materials is depleted and a second lot has been prepared. This material will be designated as INR (Iodine Number Reference). These changes need to be put into D4821 so the user community will know about them.


    Keywords

    carbon black; continuously monitoring testing; SRBs; standard reference blacks; statistical control charts: Bias; Carbon black; Data analysis--carbon black/rubber; Monitoring; Precision--carbon black test methods; Reference blacks; Standard Reference Blacks (SRB); Statistical methods--carbon black/rubber applications;
    Citing ASTM Standards
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    Work Item Status

    Date Initiated:
    08-09-2013

    Technical Contact:
    John Bailey

    Item:
    007

    Ballot:
    D24 (14-01)

    Status:
    Ballot Item Approved as D4821-2014 and Pending Publication

    Item:
    008

    Ballot:
    D24 (14-01)

    Status:
    Ballot Item Approved as D4821-2014 and Pending Publication

    Item:
    009

    Ballot:
    D24 (14-01)

    Status:
    Ballot Item Approved as D4821-2014 and Pending Publication