ISO 4918:2009 specifies methods for
a) assessment of the wear behaviour of textile floor coverings,
b) assessment of the change in colour (glossing) of needled floor coverings without a pile,
c) assessment of the general structural integrity of textile floor coverings,
d) determination of susceptibility to surface crazing, of construction integrity and of joint stability for resilient or laminate floor coverings, including joints.
The methods involve subjecting a test specimen to the movement of a castor chair.
