Design of graphical symbols for use in the technical documentation of products. Specification for graphical symbols in a computer sensible form, including graphical symbols for a reference library, and requirements for their interchange|Libraries, Technical documents, Computer networks, Interchangeability, Data transfer, Design, Diagrams, Lettering, Shape, Handbooks, Character sets, Identification methods, Specification (approval), Conformity, Symbols, Information systems, Product specification, Technical data sheets, Computer applications, Information exchange, Graphic symbols, Instructions for use, Trade literature, Graphic representation, Designations, EXPRESS, Dimensions, Data processing, Product design