This standard specifies the general terms and the definitions of graphical symbols. This standard is applicable to standardization of graphical symbols and the related fields.
2 Symbol Terms
2.1 Symbol The visuals with simplified feature for expressing certain object or concept by writing, drawing and printing. 2.2 Graphical symbol The symbol for expressing the certain object concept with major characteristics of figure or image. 2.2.1 Common symbol The graphical symbol which is applicable for multi-field and multi-profession or applied universally. 2.2.2 Special symbol The graphical symbol used for some field or profession or for special purpose. 2.2.3 Detailed symbol The graphical symbol used for indicating the function, type and (or) external characteristic in details of referent. 2.2.4 Simplified symbol The graphical symbol with partial graphs omittedor more simplified graphs. 2.2.5 General symbol The simplified graphical symbol for presenting a type of object or its feature, or that as composition foundation of each graphical symbol in symbol set. 2.2.6 Specified symbol The graphical symbol determined by the meaning formed by the general symbol which is added with qualifying symbol or other symbol element. 2.2.7 Block symbol The simple graphical symbol which is used for indicating the composition and its function of elements or equipment, while the details of elements or equipment and all the connection are not taken into consideration. 2.2.8 Symbol set A group of graphical symbols with related functions such as similar shape, close meaning, similar indicating referent or similar application. Generally, they are composited by adding other symbol or symbol element in the general symbol.
