ASTM C661 - 06(2011)

    Standard Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer

    Active Standard ASTM C661 | Developed by Subcommittee: C24.20

    Book of Standards Volume: 04.07


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    Significance and Use

    The results obtained by this test method are simply a measure of the indentation into the sealant material of the indentor under load; they are not generally considered a measure of abrasion or wear resistance of the sealant.

    1. Scope

    1.1 This test method describes a laboratory procedure for determining indentation hardness of joint sealing compounds, (single- and multicomponent), intended for use in building construction.

    1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

    1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.

    1.4 This standard does not purport to address 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

    C717 Terminology of Building Seals and Sealants

    D2240 Test Method for Rubber Property--Durometer Hardness


    ICS Code

    ICS Number Code 83.060 (Rubber); 91.100.50 (Binders. Sealing materials)

    UNSPSC Code

    UNSPSC Code 31200000(Adhesives and sealants); 41110000(Measuring and observing and testing instruments)


    DOI: 10.1520/C0661-06R11

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