This Standard serves as an introduction to all the other parts. In particular, it gives information on the creation and use of registration numbers for identifying graphical symbols used in diagrams, rules for the presentation and application of these symbols, and examples of their use and application. It includes two indexes: an alphabetic index and an index of registration numbers, both concerned uniquely with ASME Y14.40.2 to ASME Y14.40.12, and an index of cross-references to related items found in other International Standards