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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The number of viable organisms from the suspension is determined and the percent reduction is calculated by comparing retrievals from appropriate controls. Historical Version s – view previous versions of standard. Test Package Request Form.

ASTM E – Microbe Investigations (MIS)

For example, water soluble antimicrobials will be prone ashm removal from the test surface using the method described in Section 13 but insoluble compounds will not.

Surface antimicrobial activity is determined by comparing results from the test sample to controls run simultaneously. 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.

Following exposure, a sample of the test organism suspension is removed quantitatively assayed for survivors. Link to Active This link will always route to the current Active version of the standard.

Materials evaluated by this method may be comprised of fabric, paper, powder or other solid materials. This test method is designed to evaluate the resistance of specimens treated with a non-leaching antimicrobial agent to the growth of microbes under dynamic contact conditions. 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.

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ASTM E2149 Antimicrobial Activity

This standard does not purport to address all of the safety concerns, if any, associated with its use. Presence of residual antimicrobial activity indicates the presence of a leaching type of antimicrobial agent. 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.

To find out more about the cookies we use, see our Privacy Policy. One-hour contact time in a buffer solution allows for metabolic stasis in the population. This test method is designed to evaluate the antimicrobial activity of non-leaching, antimicrobial-treated specimens under dynamic contact conditions.

This dynamic shake flash test was developed for routine quality control and screening test. This test ensures good contact between bacteria and the treated fibre by constant asttm of the test specimen in a bacterial suspension during the test period 1hour.

No other units of measurement are included in this standard.

Immobilized antimicrobial agents, such as surface bonded materials, are not free to diffuse into their environment under normal conditions of use. Summary of Test Method: This test method e2419 good contact between the bacteria and the treated fiber, fabric, or other substrate, by constant agitation of the test specimen in a challenge suspension during the test period.

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Active view current version of standard. We use this information to improve and customize your browsing experience and for analytics and metrics about our visitors — both on this website and other media.

sstm This test method standardizes both the growth conditions of the challenge species and substrate contact times to reduce the variability associated with growth phase of the microorganism.

To determine if a compound is immobilized in all conditions or during the end use of the product additional testing may be required.

This dynamic shake flask test was developed for routine quality control and screening tests in order to overcome difficulties asmt using classical antimicrobial test methods to evaluate substrate-bound antimicrobials. Zstm Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

The antimicrobial activity of a substrate-bound, non-leaching antimicrobial agent is dependent upon direct contact of microbes with the active chemical agent.

Link to Active This link will always route to the current Active version of the standard. Summary of Test In this method, treated test samples are placed in a laboratory flask containing xstm dilute suspension of test organism, commonly Escherichia coli.