ASTM F112 - 00(2013)

    Standard Test Method for Sealability of Enveloped Gaskets

    Active Standard ASTM F112 | Developed by Subcommittee: F03.10

    Book of Standards Volume: 09.02


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    Significance and Use

    4.1 This test method is designed to evaluate all types of enveloped gaskets under controlled conditions with respect to leakage and to provide measurable leakage rates.

    4.2 Determining torque required to seal a given gasket is also part of this test method. By converting the torque at sealing to total bolt load, useful design information may be obtained for other standard and nonstandard openings.

    4.3 This test method may be used as an incoming quality control test to evaluate similar gaskets from different suppliers. This test method may also be used as a quality control test when parameters are agreed upon between the producer and the user.

    4.4 Leakage through the gasket or over the gasket, or both, is determined by this test method.

    1. Scope

    1.1 This test method covers the evaluation of the sealing properties of enveloped gaskets for use with corrosion-resistant process equipment.2 Enveloped gaskets are described as gaskets having some corrosion-resistant covering over the internal area normally exposed to the corrosive environment. The shield material may be plastic (such as polytetrafluoroethylene) or metal (such as tantalum). A resilient conformable filler is usually used inside the envelope. The design and construction of nonmetallic gaskets is covered in Practice F336.

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

    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. For specific precautionary statements, see Section 6.


    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

    F37 Test Methods for Sealability of Gasket Materials

    F336 Practice for Design and Construction of Nonmetallic Enveloped Gaskets for Corrosive Service


    ICS Code

    ICS Number Code 21.140 (Seals, glands)

    UNSPSC Code

    UNSPSC Code 31401502(Plastic molded gasket)


    DOI: 10.1520/F0112-00R13

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