The Illumination System tolerance shall be changed due to the variation between various light meters. The calculation and the expression of test results are being changed to reflect better precision and bias, that was noted on an Inter-laboratory study conducted for the standard. The list of the Surface Appearance Scales from the Carpet and Rug Institute has changed and shall be revised.
Keywordscarpet ; crushing; change in surface appearance; finished pile yarn floor covering; floor covering; loop pile yarn floor covering; matting; pile; pile yarn floor covering ; textile floor covering; Foot traffic; Carpets; Matting; Pile yarn floor coverings
Draft Under Development