ASTM WK71752

    Revision of D4734 - 19 Standard Specification for Refined Benzene-545

    (What is a Work Item?)

    Active Standard: D4734 - 20

    Developed by Subcommittee: D16.01 | Committee D16 | Contact Staff Manager



    benzene; benzene-545; purity;;


    The results from the PTP show that the performance of D848 for acid wash color is very poor and inadequate to use for product specifications. In addition, all of the impurities detected by D848 should be detected by D1492 for coulometric bromine index or D5776 for volumetric bromine index. This revision and ballot will be an experiment to find out if there are any objections to the removal of D848 from this and other specifications. As a result, it will be possible to withdraw D848 as a test method. If there are objections, then those individuals will need to take on the responsibility to address the performance issues with D848, revise the test method as necessary, and renew the test method on the 5-year cycle.

    Citing ASTM Standards
    Back to Top
    Work Item Status

    Date Initiated:

    Technical Contact:
    George Vickers


    D16 (20-01)

    Ballot Item Approved as D4734-2020 and Pending Publication