The method of this unification establishes the conditions to be respected to evaluate the fastness of the dyes to the action of vaporization at atmospheric pressure on textiles, of any nature, with the exception of textiles containing polyvinyl chloride fibers if not thermostabilised, in all their phases of transformation.
UNI 5803-1966 history
1966UNI 5803-1966 Textiles: Dyeing durability under atmospheric pressure steam