ASTM WK66122

    New Test Method for Standard Test Method for Determining the Germ-Repellent Activity on Plastics Surfaces

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    Developed by Subcommittee: G03.04 | Committee G03 | Contact Staff Manager



    WK66122

    1. Scope

    1.1This test method is designed to evaluate (quantitatively) the germ-repellent effectiveness of agents incorporated or bound into or onto mainly flat (two dimensional) polymeric surfaces. The method focuses primarily on assessing germ-repellent activity; however, other microorganisms such as yeast and fungal conidia may be tested using this method. 1.2 Include in this section the system of units to be used. Refer to the above ASTM Standards Units toolbar button for a dropdown menu of ASTMs Form and Style Manual statements. 1.3This method allows determination of quantitative differences in germ-repellent activity between untreated plastics or polymers and those with bound or incorporated germ-repellent agents. Comparisons between the numbers of survivors of inoculum on preservative-treated and control may also be made. 1.4Knowledge of microbiological techniques is required for these procedures. 1.5The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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.


    Keywords

    Germ-Repellent; plastic; polymer; percent bacterial reduction; quantitative antibacterial assay

    Rationale

    Polymeric materials such as food containers, personal care products, and various medical devices are treated frequently with incorporated or bound additives to restrain bacteria growth. Practice E2180 is used to determine quantitative evaluations of incorporated additives to kill bacteria; however, none of the methods permit the quantitative evaluations of incorporated or bound additives to reduce bacteria attachment and bio-film formation on plastic surface.

    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:
    12-05-2018

    Technical Contact:
    Judy LaZonby

    Status:
    Draft Under Development