This Standard specifies a method for the measurement of the thickness of pile above the backing of a textile floor covering and is applicable to all textile floor coverings having a pile of cut or looped yarn. Where areas of different construction or thickness exist, these should be tested separately if possible. This method is non-destructive of the floor covering specimen and is useful particularly for production control in manufacture and for measurements on installed carpets.

This International Standard specifies a method for the measurement of the thickness of pile above the backing of a textile floor covering and is applicable to all textile floor coverings having a pile of cut or looped yarn. Where areas of different construction or thickness exist, these should be tested separately if possible. This method is non-destructive of the floor covering specimen and is useful particularly for production control in manufacture and for measurements on installed carpets.Due to different loading factors, this method and that of ISO 1766, in which the pile fibres are cut from the substrate, may not give identical results. In case of dispute or where maximum accuracy is required, the pile thickness shall be determined by the method of ISO 1766.Because of this, care shall be exercised in comparing textile floor coverings with different substrates when using this gauge.

First published as AS/NZS 2111.21:1996.Reconfirmed 2016. First published as AS/NZS 2111.21:1996.