Lisson Tretrad test according to ISO 12951
Determination of mass loss, fibre bind and stair nosing appearance change
Testing lab
Floor & wallcovering
Legislation
Contruction Products Regulation (EU) 305/2011
Testing standard
ISO 12951
Principle
The specimens of a textile floor covering are exposed, at constant load and slippage and for a prescribed number of double passages, to the action of a four-footed wheel (Tretrad), the feet of which are fitted with interchangeable rubber soles.
A Lisson Tretrad machine comprises a bed plate, a vacuum cleaning system and two Tretrad assemblies.
Testing procedure
- Test A: Determination of mass loss of textile floor coverings, also used to assess fibre bind of synthetic 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 needled floorcoverings and floor coverings without pile
Lisson Tretrad test equipment
Useful Document
Specific Testing Conditions
Specific conditions concerning our testing reports
Document