ASTM E2784 - 10

    Standard Test Method for Evaluation of the Effectiveness of Handwash Formulations Using the Paper Towel (Palmar) Method of Hand Contamination

    Active Standard ASTM E2784 | Developed by Subcommittee: E35.15

    Book of Standards Volume: 11.05


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    Significance and Use

    This procedure has been designed to evaluate handwash products using a palmar surface only contamination method. This method is an alternative contamination procedure to that listed in Test Method E1174. The current contamination procedure in Test Method E1174 describes a standardized procedure for contaminating the entire hand, palmar surface and back, directly using a marker organism. The contamination procedure in Test Method E1174 does not necessarily represent real world hand contamination. During routine activities it is only the palmar surface, comprising palms, fingers, and finger pads of the hands that becomes contaminated by contact with transient microorganisms. These microorganisms can then be transferred to food or objects. Methods to measure the amount of microorganisms transferred to food or objects can be found in Fischler et al and Fuls et al and will be developed into a future ASTM standard.

    1. Scope

    1.1 This test method covers the determination of the effectiveness of antimicrobial handwashing agents for the reduction of transient microbial flora when used in a handwashing procedure.

    1.2 A knowledge of microbiological techniques is required for these procedures.

    1.3 This test method may be used to evaluate topical antimicrobial handwash formulations.

    1.4 Performance of this procedure requires the knowledge of regulations pertaining to the protection of human subjects.

    1.5 In this test method, SI units are used for all applications, except for distance in which case inches are used and SI units follow in parentheses.

    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. For more specific precautionary statements see 8.5.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    E1054 Test Methods for Evaluation of Inactivators of Antimicrobial Agents

    E1174 Test Method for Evaluation of the Effectiveness of Health Care Personnel Handwash Formulations

    Other Standards

    AATCCTestMethod147 Antibacterial Assessment of Textile Materials: Parallel Streak Method Technical Manual of the American Association of Textile Chemists and Colorists, P.O. Box 12215, Research Triangle Park, North Carolina 27709.


    ICS Code

    ICS Number Code 71.100.70 (Cosmetics. Toiletries)

    UNSPSC Code

    UNSPSC Code 47131803(Household disinfectants)


    DOI: 10.1520/E2784-10

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