ASTM WK63893

    Revision of D189 - 06(2014) Standard Test Method for Conradson Carbon Residue of Petroleum Products

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    Active Standard: D189 - 06(2014)

    Developed by Subcommittee: D02.06 | Committee D02 | Contact Staff Manager



    Conradson carbon residue; lubricants; petroleum products;;


    Section 1.2 of Method D189-06(2014) specifies that SI units are to be regarded as standard and that no other units of measurement are included in the standard. Section 8.1 directs that the sample be filtered through a 100-mesh screen. However, mesh is not an official SI unit. Despite extensive research no rationale was found for the addition of the filter step. The precision statement was written when no filtration step was included in the method, so to make the precision statement agree with the method it should be removed.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Jeffrey Winfield

    Draft Under Development