Test criteria.

The tests are conducted in accordance with recognized standards for which DAkkS accreditation has been obtained.
 

Test bacteria
 

  • Staphylococcus aureus, Klebsiella pneumoniae, Escherichia coli
  • Further test bacteria on request
     

Testing standards
 

  • Textiles: AATCC 100 / ASTM E 2149 / DIN EN ISO 20743
  • Surfaces: ISO 22196 / ISO 846 part B
  • Further tests are offered according to international standards


FACTSHEET: ANTIBACTERIAL

To protect the product or minimize odor, textiles or articles for domestic use are finished with antibacterial agents. The antibacterial effect can prevent bacteria from multiplying on the product or being distributed further.

To test:
The sample is tested in accordance with the American test standard ASTM E 2149 "Standard Test Method for Determining the Antimicrobial Activity of Antimicrobial Agents Under Dynamic Contact Conditions". The quality label confirms that, in the preparation for the standard test, the test sample demonstrates antibacterial activity in response to the test germ Escherichia coli ATCC 25922 and also additional - not required in the standard - gram-positive test germ (usually Staphylococcus aureus ATCC 6538). The antibacterial activity of the test sample must be significant or strong against both test germs. The quality label is subject to a test report with detailed results.

Validity:
1 year

Products:

  • Products with an antimicrobial active finish (biocide)

To protect the product or minimize odor, surfaces and articles for domestic use are finished with antibacterial agents. The antibacterial effect can prevent bacteria multiplying on the product and being distributed further.

To test:
The sample is tested in accordance with the standard ISO 22196 "Plastics – Measurement of antibacterial activity on plastics surfaces." The quality label confirms that the sample demonstrates antibacterial activity in response to the test germs Staphylococcus aureus ATCC 6538 and Escherichia coli ATCC 8739. The quality label is subject to a test report with detailed results.

Validity:
1 year

Products:

  • Surfaces and articles for domestic use 
  • Surfaces and articles for domestic use with an active antibacterial finish (biocide)

To protect the product or minimize odor, textiles are finished with antibacterial agents. The antibacterial effect can prevent bacteria multiplying on or in the product and being distributed further.

To test:
The sample is tested in accordance with the standard DIN EN ISO 20743 "Textiles – Determination of antibacterial activity of textile products". The quality label confirms that the test sample demonstrates antibacterial activity in response to the test germs Staphylococcus aureus ATCC 6538 and Klebsiella pneumoniae ATCC 4352. The quality label is subject to a test report with detailed results.

Validity:
1 year

Products:

  • Textiles with an anti-microbial active finish (biocide)
Contact
Ben Mead
Managing Director
Hohenstein Institute America