Products & active substances

Antimicrobial efficacy testing category

Active substances & antimicrobial agents

Testing of the antibacterial and antimicrobial efficacy of active substances, additives, formulations, concentrates and antimicrobial agents.

Available test methods

The following test methods enable assessment of antimicrobial active substances and formulations. Depending on the testing objective, methods are available for efficacy testing in suspension, determination of the minimum inhibitory concentration or assessment of antimicrobial additives and active substance systems.

Dynamic efficacy testing

ASTM E2149

Assessment of the antimicrobial activity of active substances and materials under dynamic contact conditions in liquid.

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Minimum inhibitory concentration

DIN 58940-8

Determination of the lowest concentration of an antimicrobial active substance that inhibits visible bacterial growth under defined conditions.

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Agar diffusion testing for textiles

DIN EN ISO 20645

Qualitative assessment of the antibacterial activity of textile fabrics based on zones of inhibition and growth in the contact area.

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Antimicrobial efficacy

ASTM E2315

Quantitative assessment of antimicrobial active substances and formulations using a suspension test (time-kill procedure).

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Advice & enquiries

Unsure which method is suitable?

We help you select an appropriate test method for active substances, additives or antimicrobial formulations.

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