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ASTM-E3321:2021 Edition

ASTM-E3321:2021 Edition

$34.13

E3321-21 Standard Test Method for Intraluminal Catheter Model used to Evaluate Antimicrobial Urinary Catheters for Prevention of Escherichia coli Biofilm Growth

Published By Publication Date Number of Pages
ASTM 2021 8
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ASTM E3321-21

Active Standard: Standard Test Method for Intraluminal Catheter Model used to Evaluate Antimicrobial Urinary Catheters for Prevention of Escherichia coli Biofilm Growth

ASTM E3321

Scope

1.1 This test method specifies the operational parameters required to assess the ability of antimicrobial urinary catheters to prevent or control biofilm growth. Efficacy is reported as the log reduction in viable bacteria when compared to a repeatable (1)2 Escherichia coli biofilm grown in the intra-lumen of a urinary catheter under a constant flow of artificial urine.

1.2 The test method is versatile and may also be used for growing and/or characterizing biofilms and suspended bacteria of different species, although this will require changing the operational parameters to optimize the method based upon the growth requirements of the new organism.

1.3 This test method may be used to evaluate surface modified urinary catheters that contain no antimicrobial agent.

1.4 This test method describes how to sample and analyze catheter segments and effluent for viable cells. Biofilm population density is recorded as log colony forming units per surface area. Suspended bacterial population density is reported as log colony forming units per volume.

1.5 Basic microbiology training is required to perform this test method.

1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard

1.7 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

antimicrobial surface; biofilm; Escherichia coli; Foley catheter; intraluminal catheter model; sampling;

ICS Code

ICS Number Code 07.100.01 (Microbiology in general)

DOI: 10.1520/E3321-21

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