ASTM C424 - 93(2012)

    Standard Test Method for Crazing Resistance of Fired Glazed Whitewares by Autoclave Treatment

    Active Standard ASTM C424 | Developed by Subcommittee: C21.03

    Book of Standards Volume: 15.02


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    Significance and Use

    This test method is particularly useful for porous materials that can exhibit moisture expansion.

    This test method is a primary test method that is suitable for use in specifications, quality control, and research and development. It can also serve as a referee test method in purchasing contracts or agreements.

    1. Scope

    1.1 This test method covers the determination of the crazing resistance of fired glazed whitewares using the autoclave treatment and under the conditions specified in this test method.

    1.2 The values stated in inch-pound units are to be regarded as the 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.


    ICS Code

    ICS Number Code 81.060.20 (Ceramic products); 97.040.60 (Cookware, cutlery and flatware)

    UNSPSC Code

    UNSPSC Code


    DOI: 10.1520/C0424-93R12

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