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    ASTM C120 / C120M - 15a

    Standard Test Methods for Flexure Testing of Structural and Roofing Slate

    Active Standard ASTM C120 / C120M | Developed by Subcommittee: C18.01

    Book of Standards Volume: 04.07


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    Significance and Use

    5.1 These test methods are useful in indicating the differences in flexure (breaking load, modulus of rupture) between various slates. These test methods also provide one element in the comparison of roofing slates under Specification C406 and structural slates under Specification C629.

    1. Scope

    1.1 These test methods cover determination of the breaking load of roofing slate and modulus of rupture of structural slate by use of simple three-point loading.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the 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

    C119 Terminology Relating to Dimension Stone


    ICS Code

    ICS Number Code 91.100.15 (Mineral materials and products)

    UNSPSC Code

    UNSPSC Code 11111606(Slate)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/C0120_C0120M-15A

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    Citation Format

    ASTM C120 / C120M-15a, Standard Test Methods for Flexure Testing of Structural and Roofing Slate, ASTM International, West Conshohocken, PA, 2015, www.astm.org

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