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ASTM D3863-87(1998) Standard Test Method for Retention Characteristics of 0.40 to 0.45-mu m Membrane Filters Used in Routine Filtration Procedures for the Evaluation of Microbiological Water Quality
standard by ASTM International, 12/10/1998
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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