1.1 This standard prescribes a method for the determination of colour fastness of textile materials of all kinds and in all forms to the action of steam under pressure. The materials are not pleated during test and it is emphasized that it is not intended for assessing the quality of pleating process.
1.2 Three tests, differing in severity, are prescribed, one or more of them shall be used depending on the requirements.
IS 4637-1988 history
1989IS 4637-1988 Method for determination of color fastness of textile materials to cooking