ASTM C886 - 98(2010)e1

    Standard Test Method for Scleroscope Hardness Testing of Carbon and Graphite Materials

    Active Standard ASTM C886 | Developed by Subcommittee: D02.F0

    Book of Standards Volume: 05.05


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    Significance and Use

    The scleroscope is a rebound hardness tester with a scale divided into 140 equal parts. For carbon and graphite materials, there is no established correlation between the Scleroscope hardness scale and other hardness scales. The test is useful in the evaluation and the manufacturing control of carbon and graphite materials.

    1. Scope

    1.1 This test method covers the apparatus and procedure for determining the hardness of carbon and graphite materials using the Model C-2 scleroscope with the hammer calibrated for use on carbon and graphite materials with particles smaller than 0.8 mm.

    1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E171 Practice for Conditioning and Testing Flexible Barrier Packaging

    E448 Practice for Scleroscope Hardness Testing of Metallic Materials

    ANSI Standard

    ANSIC64.1 Brushes for Electrical Machines


    ICS Code

    ICS Number Code 71.100.99 (Other products of the chemical industry)

    UNSPSC Code

    UNSPSC Code 11101507(Graphite); 12141908(Carbon C)


    DOI: 10.1520/C0886-98R10E01

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