ASTM E2871 - 19 - Standard Test Method for Determining Disinfectant Efficacy Against Biofilm Grown in the CDC Biofilm Reactor Using the Single Tube Method

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ASTM E2871 - 19

Standard Test Method for Determining Disinfectant Efficacy Against Biofilm Grown in the CDC Biofilm Reactor Using the Single Tube Method

Status : Current   Published : January 2019

Format
PDF

Format
HARDCOPY



1.1 This test method specifies the operational parameters required to perform a quantitative liquid disinfectant efficacy test against bacterial biofilm.

1.2 The test method was optimized and validated for a Pseudomonas aeruginosa or Staphylococcus aureus biofilm grown in the CDC Biofilm Reactor ( E3161). The method is suitable for evaluating additional bacteria grown using the procedures outlined in methods with comparable coupon dimensions such as Practice E3161, Test Method E2562, or Test Method E2196.

1.3 Disinfectant preparation and contact time are used in the assessment according to the manufacturer’s instructions for use.

1.4 The test method uses a closed system to treat biofilm. A coupon is placed in a single tube for the treatment, neutralization, and harvesting steps to prevent the loss of cells.

1.5 This test method describes a harvesting and analysis procedure which includes vortexing and sonicating treated and untreated control biofilm, and recovery of culturable cells using filtration to lower the limit of detection. Biofilm population density is recorded as log 10 colony-forming units per coupon. Efficacy is reported as a log 10 reduction of culturable cells.

1.6 Basic microbiology training is required to perform this assay.

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

1.8  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.

1.9  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.




Standard NumberASTM E2871 - 19
TitleStandard Test Method for Determining Disinfectant Efficacy Against Biofilm Grown in the CDC Biofilm Reactor Using the Single Tube Method
StatusCurrent
Publication Date01 January 2019
Descriptors antimicrobial, biofilm, CDC Biofilm Reactor, disinfectant, efficacy testing, log reduction, Pseudomonas aeruginosa, Staphylococcus aureus
ICS71.100.35
PublisherASTM
FormatA4
DeliveryYes
Pages8
File Size162 KB
Price£39.00


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