A percentage reduction may attract attention, but it does not describe a product’s performance on its own. Comparing solutions requires knowing what was tested, against which microorganism and under what conditions.
Identify the sample
Check whether the report covers a test specimen, an intermediate material or a finished part. Record the reference, material and formulation used. When the resin, finish or process changes, review with the technical team which evidence remains applicable.
Review the method and its scope
ISO 22196 describes a method for evaluating the antibacterial activity of treated plastics and other non-porous surfaces. Its scope does not include demonstrating secondary effects such as preventing odour or biodeterioration. The assessment objective must therefore match the chosen method. Source: ISO 22196.
Read the conditions alongside the result
When reviewing a report, identify the microorganism and strain, contact time, test conditions and comparison reference. If any of these details are missing from a commercial summary, request the report or clarification before treating two figures as equivalent.
The documents on E. coli and Listeria remind us that “bacteria” covers different organisms. A result against one specific microorganism is not enough to claim the same performance against all others. Nor does it establish an antiviral effect on its own.
Distinguish the laboratory result from the benefit you intend to communicate
A surface test provides evidence about that sample under those conditions. It does not by itself demonstrate fewer infections among users or justify reducing cleaning. Commercial communication must reflect the evidence available for the product.
For example, if a customer requests a part for frequently used equipment, agreeing on the surface and performance to assess is more useful than simply choosing the highest percentage in a catalogue.
Prepare an enquiry that moves the project forward
Share the material, application, available report and the claim you would like to communicate. Deltachem can help structure your enquiry and coordinate with the manufacturer on the appropriate documentation or assessment.
Continue exploring: How to prepare a trial in a plastic part.
Next step: Discuss my application.