Over deze norm
Specifies four methods of test of textile floor coverings (with or without an underlay) using the Lisson Tretad machine. Test A: Determination of mass loss of textile floor coverings, also used to assess fibre bind of synthetic cut pile carpets. Test B: Determination of stair nosing appearance change of textile floor coverings. Test C: Determination of fibre bind on synthetic loop pile carpets. Test D: Determination of fibre bind (hairiness) on needed floor coverings.