ASTM G21

Scope
Standard practice for determining resistance of synthetic polymeric materials to fungi.

Products to be tested
Synthetic polymeric materials.

Description of Test

  • Fungi are grown on solid medium and a spore suspension is prepared from Penicillium, Aspergillus, Chaetomium, Trichoderma, Aureobasidium.
  • A small volume of the pooled spore preparation is applied directly to the test samples.
  • Petri dishes are sealed and incubated for up to 28 days.
  • Samples are given a semi-quantitative based performance score based on fungal growth after 28 days.

Third Party Validation
On passing this test, the product can be labelled as tested by airmid healthgroup to ASTM G21 in support of any claim relating to the test and data received.

Turnaround Time
5 weeks

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