Service performance / Testing

What happens to products when they can no longer be recycled at the end of the textile chain?

The test developed by the Hohenstein Institute enables the biodegradability of textile products to be assessed over a defined period by a controlled process of burying them in soil. "Controlled" means: There are sufficient oxygen and micro-organisms present in the soil, and the bacteria in the ground offer different biodegradation mechanisms for both natural materials and synthetic fibres.

It must be ensured that products which are destined for landfill or composting will biodegrade in the soil and that any substances left over from textile finishes will not have an adverse effect on the ground.

The tests are carried out in standardised conditions. The customer is free to define the following conditions individually:

  • Burying under Standardised laboratory conditions
  • Burying outdoors (exposed to outside temperatures)
  • Extra microorganisms can be added to the test soil to speed up the rotting process
  • Length of burial: period over which the testing should take place

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