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ASTM D3863-87(2011)

Historical Revision

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

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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 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.

Microbiological water testing procedures using membrane filtration are based on the premise that all bacteria within a specific size range will be retained by the membrane filter used. If the membrane filter does not retain these bacteria, false negative results or lowered density estimates may occur that could have serious repercussions due to the presence of unrecognized potential health hazards in the water being tested, especially in drinking water.

This procedure as devised will enable the user to test each membrane filter lot number for its ability to retain all bacteria equal to, or larger than, the stated membrane pore size.

^SCOPE:

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.

SDO ASTM: ASTM International
Document Number D3863
Publication Date May 1, 2011
Language en - English
Page Count 3
Revision Level 87(2011)
Supercedes
Committee D19.08
Publish Date Document Id Type View
Jan. 1, 2022 D3863-22 Revision
May 1, 2011 D3863-87R11 Revision
Dec. 10, 1998 D3863-87R98 Reaffirmation
March 27, 1987 D3863-87R03 Reaffirmation