This standard establis es the conditions under which the washing fastness test must be carried out to determine the different types of dyes applied to textiles, with the dyeing or printing subjected to washing under four formulas (conditions) that vary in temperature and alkalinity. . (See table 3)
NC 40-07-1967 history
1967NC 40-07-1967 Method for determining textiles products fastness. Washing fastness for the determination of dyes qualities