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This test method covers a procedure to test membrane filters for their ability to retain bacteria whose diameter is equal to or slightly larger than membrane filters with pore size rated at 0.40 to 0.45 μm.
Formerly under the jurisdiction of Committee D19 on Water, this test method was withdrawn in July 2020 in accordance with section 10.6.3 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the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.
1.1 This test method covers a procedure to test membrane filters for their ability to retain bacteria whose diameter is equal to or slightly larger than membrane filters with pore size rated at 0.40 to 0.45 μm.
1.2 The procedures described are for the use of user laboratories as differentiated from manufacturers' laboratories.
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.
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
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ASTM D3863-87(2011), Standard Test Method for Retention Characteristics of 0.40 to 0.45-μm Membrane Filters Used in Routine Filtration Procedures for the Evaluation of Microbiological Water Quality (Withdrawn 2020), ASTM International, West Conshohocken, PA, 2011, www.astm.orgBack to Top