ASTM C949 - 80(2020)

    Standard Test Method for Porosity in Vitreous Whitewares by Dye Penetration

    Active Standard ASTM C949 | Developed by Subcommittee: C21.03

    Book of Standards Volume: 15.02


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    Significance and Use

    5.1 This test method provides a means for readily determining if a ceramic is properly fired (matured). Penetration of any extent may negate the usefulness of the ceramic, or, arbitrarily, some degree of penetration may be acceptable for the use or commercial quality of the item being tested.

    1. Scope

    1.1 This test method covers procedures for detecting pores, cracks, or other voids that may be present in otherwise impermeable whiteware ceramics, or as porosity in underfired ware.

    Note 1: This test method was partially derived from ANSI C29.1.

    1.2 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    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

    C242 Terminology of Ceramic Whitewares and Related Products

    ANSI Standard

    C29.1 Test Methods for Electrical Power Insulators


    ICS Code

    ICS Number Code 81.060.20 (Ceramic products)

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

    DOI: 10.1520/C0949-80R20

    Citation Format

    ASTM C949-80(2020), Standard Test Method for Porosity in Vitreous Whitewares by Dye Penetration, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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