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    ASTM E2896-12

    Standard Test Method for Quantitative Petri Plate Method (QPM) for Determining the Effectiveness of Antimicrobial Towelettes (Withdrawn 2020)

    Withdrawn Standard: ASTM E2896-12 | Developed by Subcommittee: E35.15


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    Withdrawn Rationale:

    This test method provides detailed instructions for performing a quantitative evaluation of antimicrobial efficacy of a towelette when challenged against Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella enterica. The method may be used with other microbial strains, though modification may be necessary to accommodate recovery.

    Formerly under the jurisdiction of Committee E35 on Pesticides, Antimicrobials, and Alternative Control Agents, this test method was withdrawn in October 2020. This standard is being withdrawn without replacement because the proposed changes to the test method being considered by the workgroup are substantial enough to warrant the generation of a new standard.

    1. Scope

    1.1 This test method provides detailed instructions for performing a quantitative evaluation of antimicrobial efficacy of a towelette when challenged against Staphylococcus aureus, Pseudomonas aeruginosa and Salmonella enterica. The method may be used with other microbial strains, though modification may be necessary to accommodate recovery.

    1.1.1 Antimicrobial towelettes, designed to decontaminate hard, non-porous surfaces, are diverse in size, matrix composition, and packaging.

    1.1.2 Antimicrobial towelettes also vary in label claims and use directions.

    1.2 This quantitative method does not differentiate between mechanical removal of inoculum from a surface and chemical inactivation of the test microbe; rather, product efficacy is considered a combination of both attributes of a towelette-based formulation.

    1.3 It is the responsibility of the investigator to determine whether Good Laboratory Practices (GLP Standards—40 CFR, Part 160 of FIFRA) are required and to follow them when appropriate.

    1.4 This standard may involve the use of hazardous materials, chemicals and infectious microorganisms and should be performed only by persons with formal training in microbiology.

    1.5 Strict adherence to the protocol is necessary for the validity of the test results.

    1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.7 This standard does not address specific product performance standards established by regulatory authorities; see Section 10, Note 2 for details.

    1.8 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.



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    DOI: 10.1520/E2896-12

    Citation Format

    ASTM E2896-12, Standard Test Method for Quantitative Petri Plate Method (QPM) for Determining the Effectiveness of Antimicrobial Towelettes (Withdrawn 2020), ASTM International, West Conshohocken, PA, 2012, www.astm.org

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