Part 1 of AS L15 provides general information about standard methods for determining colour fastness of textiles, which are described in other parts of the standard on colour fastness testing. The uses and limitations of these methods are pointed out, terms are defined, and an outline of the general layout of parts dealing with particular test methods is given and content of clauses discussed. Procedures common to a number of methods are briefly discussed. Appendices A and B of this Part describe the Grey Scale for evaluating change in colour, and the Grey Scale for evaluating staining.