The purpose of this test is to determine whether or not the color of a textile material is transferable to other surfaces by rubbing. It is applicable to manufactured textile materials of all fibers, in the form of yarns or fabrics; dyed, printed or colored by other methods.
NORVEN 55-35-1961 history
1961NORVEN 55-35-1961 Methods for specifying the hardness of colored textile raw materials (by friction)