Testing Instruments By Standards
The standard test method helps to determine the color fastness of all kinds and all forms of textile materials inclusive of floor covering to staining and rubbing of other materials. The method is applicable mainly to textile floor covering and to detach the samples. Two types of tests are described in this standard one with wet rubbing cloth and other with dry cloth.
Two different sizes of rubbing finger are provided with the apparatus as per this standard. One is for pile fabrics and another one is for textiles. The actual color of the stain occurred on the cloth by rubbing is assessed with the help of gray scale.