ASTM WK45556

    Revision of D1765 - 13 Standard Classification System for Carbon Blacks Used in Rubber Products

    (What is a Work Item?)

    Active Standard: D1765 - 14

    Developed by Subcommittee: D24.41 | Committee D24 | Contact Staff Manager



    WK45556

    1. Rationale

    ASTM D 1765 table 1 classifies the different Carbon Blacks by their analytical properties. For N 990 a target for the Oil Absorption Number is reported to be 43 m3/kg. Reviewing the analytical data from different producers it is obvious that this target is not realistic no matter if tested with DBP, paraffinic oil or epoxidized fatty acid ester. Therefore this target number should be revised in order to reflect the correct long term data, measured in the history of N 990 production.


    Keywords

    carbon black; classification of carbon blacks; industry reference blacks; typical properties of carbon black types;
    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:
    03-28-2014

    Technical Contact:
    Ricky Magee

    Item:
    004

    Ballot:
    D24 (14-01)

    Status:
    Ballot Item Approved as D1765-2014 and Pending Publication