ASTM WK45351

    New Test Method for Quantitative evaluation of bactericidal activity of porous antibacterial treated articles.

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


    1. Scope

    1.1 To determine the antibacterial properties of materials treated with a biocide, samples of porous treated materials, such as textiles or paper, are inoculated with defined suspensions of microorganisms and then incubated. The changes over time in the size of populations on treated compared with untreated materials are used to measure antibacterial properties of the treated materials. 1.2 This method is used for measuring the antibacterial performance of porous materials that have been treated with a biocide so to inhibit the growth of bacteria on the treated materials. It is not intended for use in determining the ability of a treated article to sterilize or decontaminate secondary surfaces but may be used to indicate the ability of the treated material to inhibit the growth of odor causing organism. The method was developed based on modifications of several industry standard techniques. Modifications were made and validated by two, statistically designed international ring tests conducted by the International Biodeterioration Research Group (IBRG).

    This standard method will be used to determine the antimicrobial properties of articles, particularly textiles or non-wovens treated with specific antimicrobial agents. Other such similar standards do exist in the Industry but these methods either offer variables which affect intra-lab reproducibility or limit the utility of using these methods to demonstrate a variety of end use performance claims.



    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:
    Robert Monticello

    Draft Under Development