IEC 80416-1 pdf download

IEC 80416-1 pdf download.Basic principles for graphical symbols for use on equipment
1 Scope
International Standard 80416 series provides principles and guidelines for the creation of symbol originals and the application of graphical symbols for use on equipment prepared within ISO and IEC. This Part 1 of the standard specifies the key principles for the creation of symbol originals for use on equipment. In accordance with the intended meaning of the symbol originals, it contains rules for design such as shape and size, and also for preparation of the accompanying texts. This standard applies to graphical symbols used: – to identify the equipment or a part of the equipment (for example, a control or display); – to indicate functional states or functions (for example, on, off, alarm); – to designate connections (for example, terminals, filling points); – to provide information on packaging (for example, identification of content, instructions for handling); – to provide instructions for the operation of the equipment (for example, Iimitations of use). This standard does not apply to symbol originals for: – safety signs; – use on drawings and diagrams; – use in technical documentation of products and in technical product documentation; – use for public information.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 80416-2:2001, Basic principles for graphical symbols for use on equipment – Part 2: Form and use of arrows ISO 7000, Graphical symbols for use on equipment – Index and synopsis
3 Definitions
For the purpose of this International Standard, the following definitions apply. 3.1 graphical symbol visually perceptible figure with a particular meaning used to transmit information independently of language 3.2 graphical symbol element part of a symbol original with a particular meaning NOTE 1 Letters, numerals, punctuation marks and mathematical symbols may be used as graphical symbol elements (see ISO 31 and IEC 60027). NOTE 2 A graphical symbol element with a specific meaning may be used to provide a common concept in the construction of a symbol family. 3.3 symbol original drawing of a graphical symbol, prepared in accordance with this standard, used for reference or reproduction purposes 3.4 corner marking part of a symbol original, four of which define the frame of the symbol original; see 7.3 and figure 8 3.5 title unique name by which a graphical symbol is identified and spoken of NOTE The title should be as short as possible; it is only intended to provide a unique name for the graphical symbol and not to describe its application. 3.6 description normative text attached to the graphical representation of the symbol original which defines the purpose, the application and the use of the symbol original
4 Meaning
4.1 Assignment The meaning assigned to each symbol original is the result of associating a title, a graphical representation and a description of the application. The assigned meaning should be un- ambiguous and independent of terms related to a special technique or discipline.4.2 Orientation of graphical symbols Graphical symbols should normally be used in the orientation specified by the symbol originals. Care should be taken to avoid ambiguity during creation of symbol originals and subsequent use of graphical symbols whose meaning is dependent on their orientation. Such ambiguity could occur, for instance, when graphical symbols are placed on rotary knobs. Symbol originals should whenever possible be created so as to preserve their meaning in any orientation as the example a) in figure 1. However, when the meaning of a graphical symbol does depend on its orientation, as in the case of the examples b) in figure 1, this shall be explicitly stated in the description of the symbol original.