ASTM WK35133

    New Test Method for Determination of Antibacterial Activity on Ceramic Surfaces

    (What is a Work Item?)

    Developed by Subcommittee: E35.15 | Committee E35 | Contact Staff Manager


    1. Scope

    1.1 This method is designed to evaluate the antibacterial activity of glazed ceramic surfaces that have been specifically designed to contain a durable antibacterial treatment as part of the glaze. 1.2 Knowledge of microbiological techniques is required for this test. 1.3 Units - The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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.

    Traditional antimicrobial test methodologies, such as ISO 22196, do not accurately reflect the complexities associated with a ceramic surface. Therefore a new test method designed specifically for ceramic tile surfaces is required. This test method would require a pre-conditioning step to prevent desiccation and the resulting false positives, a control piece (either supplied by the manufacturer or glass), and a low inoculum level (104 cfu/ml)to mimic real- world recovery levels.


    Ceramic; Tile; Bacteria; Antimicrobial

    The title and scope are in draft form and are under development within this ASTM Committee.

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    Work Item Status

    Date Initiated:

    Technical Contact:
    Gina Sloan


    E35.15 (14-04)

    Withdrawn From Balloting


    E35 (15-02)

    Ballot Item Approved as E3031-2015 and Pending Publication