Principle

Determination of the dimensional changes and distortion out of plane that are likely to take place when a textile floor covering in tile form is exposed to various conditions of moisture and heat. 

The Aachen test (EN 986) was developed to standardise and assess the intrinsic dimensional stability of the carpet tile without the aid of adhesives.

  • Dimensional stability: changes in the flat dimensions of a specimen after treatment with various specified conditions of moisture and heat.
  • Distortion out of plane: vertical deformation shown by the specimen after treatment with various specified conditions of moisture and heat.