Research Report RR:E28-1022

    An interlaboratory study was conducted for test method E18 to represent the change in the precision statement from the use of steel balls to carbide balls for all scales that use a ball indenter.

    Published: July 2007

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    Related Standards

    E18-14 Standard Test Methods for Rockwell Hardness of Metallic Materials


    Committee E28 on Mechanical Testing


    Subcommittee E28.06 on Indentation Hardness Testing