ASTM D2020 – Antifungal Paper Test

ASTM D2020 is a legacy antifungal test method that provides a qualitative determination of fungal (mildew) resistance of paperboard.

 Excessive fungal growth can create unsightly appearance and inhibit a product's intended performance.

This antimicrobial test method is commonly used for paperboard that has been given a fungus-resistant treatment.

Standard testing for ASTM D2020 runs for 14 days and tests a material’s resistance to a standard fungal inoculum.

In the ASTM test method D2020, three standard organisms tested against include C. globosum, A. terreus, and A. niger.

antimicrobial testing of treated wood pulp backing board by ASTM D3273; excessive fungal growth

Microbiological fungi resistance testing of antimicrobial treated backing board. Excessive fungal growth displayed on test sample.

Two options for testing can be performed:

  • The direct inoculation method is recommended for paper products that are expected to be used or stored in a damp, warm atmosphere, but do not come into direct contact with damp soil.
  • The soil burial method  is recommended for papers with or without fungus resistant treatment that may be in contact with damp soil for long periods of time.

Paper products intended to have antimicrobial resistant properties must be appropriately tested for both anti-bacterial and anti-fungal performance to assure a durable, problem free product.

Paper fibers are naturally consumable by microorganisms and will require a range of technologies to prevent microbial colonization of the material.

Customers also commonly request ASTM D3273  to measure antimicrobial performance of treated paperboard.  This approach allows manufacturers to test a variety of additive concentrations and choose the most effective antimicrobial to use in product production.

For more information about ASTM D2020 and antifungal testing, contact our antimicrobial lab at 847-483-9950 or info@situtest.com

Related Posts – Techical Resources

Antifungal Product Testing – ASTM Test Methods

Situ Biosciences to Present at Personal Care EXPO

Come check out our booth #332!

Situ Biosciences will be at the Teamworks Expo in April to showcase our technical expertise in the personal care and cosmetic industry. Our team will go over product performance testing and formulation development, and be able to discuss a variety of services that help our customers meet their testing needs.

When: April 11, 2018

Located at the Donald E. Stephens Convention Center:
5555 N River Rd, Rosemont, IL 60018

Come visit our booth: #332

Please let us know if you would  like to set up a meeting at the conference.

Feel free to contact our laboratory at (847) 483-9950 or info@situtest.com