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    ASTM D4198-82(2011)

    Standard Test Methods for Evaluating Absorbent Pads Used with Membrane Filters for Bacteriological Analysis and Growth (Withdrawn 2020)

    Withdrawn Standard: ASTM D4198-82(2011) | Developed by Subcommittee: D19.08


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    Withdrawn Rationale:

    These test methods cover the determination of the nutrient-holding capacity and the toxic or nutritive effect on bacterial growth of organisms retained on a membrane filter, when the absorbent pad being tested is used as a nutrient reservoir and medium supply source for the retained bacteria.

    Formerly under the jurisdiction of Committee D19 on Water, these test methods were withdrawn in July 2020 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

    1. Scope

    1.1 These test methods cover the determination of the nutrient-holding capacity and the toxic or nutritive effect on bacterial growth of organisms retained on a membrane filter, when the absorbent pad being tested is used as a nutrient reservoir and medium supply source for the retained bacteria.

    1.2 The tests described are conducted on 47-mm diameter disks, although other size disks may be employed for bacterial culture techniques.

    1.3 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.



    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

    D1129 Terminology Relating to Water

    D1193 Specification for Reagent Water

    D3508 Method for Evaluating Water Testing Membrane Filters for Fecal Coliform Recovery (Discontinued 1994)


    Referencing This Standard
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    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/D4198-82R11

    Citation Format

    ASTM D4198-82(2011), Standard Test Methods for Evaluating Absorbent Pads Used with Membrane Filters for Bacteriological Analysis and Growth (Withdrawn 2020), ASTM International, West Conshohocken, PA, 2011, www.astm.org

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