ASTM E2149 PDF
ASTM E Antimicrobial Standard Test Method for Determining the Antimicrobial Activity of Immobilized Antimicrobial Agents Under Dynamic Contact. ASTM E Standard Test Method for Determining the Antimicrobial Activity of Immobilized Antimicrobial Agents Under Dynamic Contact Conditions. ASTM E Standard Test Method for Determining the Antimicrobial Activity of Immobilized Antimicrobial Agents under Dynamic Contact Conditions. The test.
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This test method standardizes both the growth conditions asttm the challenge species and substrate contact times to reduce the variability associated with growth phase of the microorganism. Maria Curry ext Wrist Action Shaker.
ASTM E2149 Antimicrobial Activity
To determine if a compound is immobilized in all conditions or during the end use of the product additional testing may be required. Surface antimicrobial activity is determined by comparing results from the test sample to controls run simultaneously. Work Item s – proposed revisions of this standard.
Materials evaluated by this method may be comprised of fabric, paper, powder or other solid materials. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
These cookies collect information about how you interact with our website and allow us to remember you. No regulated reduction limits currently exist for general antimicrobial claims made using this method.
ASTM E – Method Determining the Antimicrobial Activity
These difficulties include ensuring contact of inoculum to treated surface as in AATCCflexibility of retrieval at different contact times, use of inappropriately applied static conditions as in AATCCsensitivity, and reproducibility. A single cookie will be used in your browser to remember your preference not to be tracked. This dynamic shake flask test was developed for routine quality control and screening tests in order to overcome difficulties in using classical antimicrobial test methods to evaluate substrate-bound antimicrobials.
Presence of residual antimicrobial activity indicates the presence of a leaching type of antimicrobial agent. The susceptibility of the species to particular biocides could be altered depending on its life stage cycle.
Link to Active This link will always route to the current Active version of the standard. All the samples aetm shaken in dynamic shake flasks in a wrist action shaker to ensure good contact between the bacteria and the treated fibre, fabric, or other substrate by constant agitation of the test specimen in a bacterial suspension during the test period. W2149 has been developed for routine quality control and screening tests and is used to evaluate substrate bound antimicrobials.
Active view current version of standard. This website stores cookies on your computer. This test ensures good contact ast, bacteria and the treated fibre by constant agitation of astk test specimen in a bacterial suspension during e21499 test period 1hour.
This standard does not purport to address all of the safety concerns, if any, associated with its use. Note 1 — Stresses may include laundry, wear and abrasion, radiation and steam sterilization, UV exposure, solvent manipulation, temperature susceptibility, or similar physical or chemical manipulation.
Historical Version s – view previous versions of standard. This test method is designed to evaluate the antimicrobial activity of non-leaching, antimicrobial-treated specimens under dynamic contact conditions.
For example, water soluble antimicrobials will be prone to removal from the test surface using the method described in Section 13 but insoluble compounds will not. Work Item s – proposed revisions of this standard. Record and report presence of solution activity.
The test determines the antimicrobial activity of a treated specimen by shaking samples of surface-bound materials in a concentrated bacterial suspension for a one hour contact time. The presence of a leaching antimicrobial is determined post-test. Test Package Request Form. Link to Active This link will always route to the current Active version of the standard.
Microbial concentrations in the treated and untreated samples are usually determined at 0, 1 or 24 hours contact time. No other units of measurement are included in this standard. These difficulties include ensuring contact of inoculum to treated surface as in AATCCflexibility of retrieval at different contact times, use of inappropriately applied static conditions as in AATCCsensitivity, and reproducibility.