ASTM E2786 - 10

    Standard Test Methods for Measuring Expansion of Intumescent Materials Used in Firestop and Joint Systems

    Active Standard ASTM E2786 | Developed by Subcommittee: E06.21

    Book of Standards Volume: 04.12


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    Significance and Use

    These test methods are intended to measure the materials expansion after heating.

    The test methods also provide a means to determine the expansion factor.

    1. Scope

    1.1 These test methods determine, by measurement, the expansion of intumescent materials used in firestop and joint systems under specified conditions.

    1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

    1.3 The text of these test methods references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the fire test response standard.

    1.4 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

    E176 Terminology of Fire Standards

    E631 Terminology of Building Constructions


    ICS Code

    ICS Number Code 13.220.20 (Fire protection)

    UNSPSC Code

    UNSPSC Code 41110000(Measuring and observing and testing instruments); 30141605(Fireproofing material)


    Referencing This Standard

    DOI: 10.1520/E2786-10

    ASTM International is a member of CrossRef.

    Citation Format

    ASTM E2786-10, Standard Test Methods for Measuring Expansion of Intumescent Materials Used in Firestop and Joint Systems, ASTM International, West Conshohocken, PA, 2010, www.astm.org

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