This European Standard specifies four methods of test of textile floorcoverings (with or without an underlay,
see Clause 9) using the Lisson Tretrad machine.
Test A: Determination of mass loss of textile floorcoverings also used to assess fibre bind of synthetic cut
pile carpets.
Test B: Determination of stair nosing appearance change of textile floorcoverings.
Test C: Determination of fibre bind on synthetic loop pile carpets.
Test D: Determination of fibre bind (hairiness) on needled floorcoverings.